Al Gore received the Nobel Peace Prize in 2007 for giving mankind scientific advice about the earth’s climate, but how good a scientific authority is he really?

Here he is a few days ago talking with Conan O’Brian about geothermal energy.

1:24 video

Quote the Goracle:

“two kilometers or so down in most places there are these incredibly hot rocks, ‘cause the interior of the earth is extremely hot, several million degrees”
————————————————
John Derbyshire (who majored in mathematics at University College, London) corrects the Nobel laureate.

The geothermal gradient is usually quoted as 25–50 degrees Celsius per mile of depth in normal terrain (not, e.g., in the crater of Kilauea). Two kilometers down, therefore, (that’s a mile and a quarter if you’re not as science-y as Al) you’ll have an average gain of 30–60 degrees — exploitable for things like home heating, though not hot enough to make a nice pot of tea. The temperature at the earth’s core, 4,000 miles down, is usually quoted as 5,000 degrees Celsius, though these guys claim it’s much less, while some contrarian geophysicists have posted claims up to 9,000 degrees. The temperature at the surface of the Sun is around 6,000 degrees Celsius, while at the center, where nuclear fusion is going on bigtime, things get up over 10 million degrees.

If the temperature anywhere inside the earth was “several million degrees,” we’d be a star.

————————————————
Of course, there is no real reason for surprise. The Washington Post once looked up Albert Gore’s Harvard record, and reported:

For all of Gore’s later fascination with science and technology, he often struggled academically in those subjects. The political champion of the natural world received that sophomore D in Natural Sciences 6 (Man’s Place in Nature) and then got a C-plus in Natural Sciences 118 his senior year. The self-proclaimed inventor of the Internet avoided all courses in mathematics and logic throughout college, despite his outstanding score on the math portion of the SAT (730). As was the case with many of his classmates, his high school math grades had dropped from A’s to C’s as he advanced from trigonometry to calculus in his senior year.

When John C. Davis, a retired teacher and assistant headmaster at St. Albans, was recently shown his illustrious former pupil’s college board achievement test scores, he inspected them closely with a magnifier and shook his head, chuckling quietly at the science results.

“Four eighty-eight! Terrible” Davis declared upon inspecting the future vice president’s 488 score (out of a possible 800) in physics.

“Hmmmm. Chemistry. Five-nineteen. He didn’t do too well in chemistry.”

Are you a genetically a dandelion or an orchid? Both have their place in the evolutionary scheme of things according to a recent article in the Atlantic by David Dobbs.

Most of us have genes that make us as hardy as dandelions: able to take root and survive almost anywhere. A few of us, however, are more like the orchid: fragile and fickle, but capable of blooming spectacularly if given greenhouse care. So holds a provocative new theory of genetics, which asserts that the very genes that give us the most trouble as a species, causing behaviors that are self-destructive and antisocial, also underlie humankind’s phenomenal adaptability and evolutionary success. With a bad environment and poor parenting, orchid children can end up depressed, drug-addicted, or in jail—but with the right environment and good parenting, they can grow up to be society’s most creative, successful, and happy people.

Hat tip to Bird Dog.

The London Time describes how sophisticated forensic techniques were able to authenticate a portrait profile drawing in inks and chalks as the work of Leonardo da Vinci.

The 33×23cm (13×9in) picture, in chalk, pen and ink, appeared at auction at Christie’s, New York, in 1998, catalogued as “German school, early 19th century”. It sold for $19,000 (£11,400). Now a growing number of leading art experts agree that it is almost certainly by Leonardo da Vinci and worth about £100 million.

Carbon dating and infra-red analysis of the artist’s technique are consistent with such a conclusion, but the most compelling evidence is that fragment of a fingerprint.

Peter Paul Biro, a Montreal-based forensic art expert, found it while examining images captured by the revolutionary multispectral camera from the Lumière Technology company. ...

The fingerprint corresponds to the tip of the index or middle finger, and is “highly comparable” to one on Leonardo’s St Jerome in the Vatican. Importantly, St Jerome is an early work from a time when Leonardo was not known to have employed assistants, making it likely that it is his fingerprint.

Martin Kemp, Emeritus Professor of History of Art at the University of Oxford, is convinced and recently completed a book about the find (as yet unpublished). He said that his first reaction was that “it sounded too good to be true — after 40 years in the business, I thought I’d seen it all”. But gradually, “all the bits fell into place.”

Professor Kemp has rechristened the picture, sold as Young Girl in Profile in Renaissance Dress, as La Bella Principessa after identifying her, “by a process of elimination”, as Bianca Sforza, daughter of Ludovico Sforza, Duke of Milan (1452-1508), and his mistress Bernardina de Corradis. He described the profile as “subtle to an inexpressible degree”, as befits the artist best known for the Mona Lisa.

If it is by Leonardo, it would be the only known work by the artist on vellum although Professor Kemp points out that Leonardo asked the French court painter Jean Perréal about the technique of using coloured chalks on vellum in 1494.

The picture was bought in 1998 by Kate Ganz, a New York dealer, who sold it for about the same sum to the Canadian-born Europe-based connoisseur Peter Silverman in 2007. Ms Ganz had suggested that the portrait “may have been made by a German artist studying in Italy … based on paintings by Leonardo da Vinci”. ...

Carbon-14 analysis of the vellum gave a date range of 1440-1650. Infra-red analysis revealed stylistic parallels to Leonardo’s other works, including a palm print in the chalk on the sitter’s neck “consistent … to Leonardo’s use of his hands in creating texture and shading”, according to Mr Biro.

Only 15 surviving paintings are generally attributed in whole or in part to Leonardo. His responsibility for another six is disputed.

Dr. Maurizio Seracini, an engineering professor from UC San Diego, had been pursuing a quest to recover Leonardo Da Vinci’s largest painting, a 1505 fresco depiction of the 65 year earlier Battle of Angiarhi between Florence and Milan which once ornamented the Hall of Five Hundred in Florence, which disappeared in the course of a mid-16th century remodeling by Giogio Vasari, for a number of years.

The New York Times reports that scientific instruments are now ready to test Seracini’s hypothesis that Vasari simply walled-up the Da Vinci fresco.

“The Battle of Anghiari,” (was) the largest painting Leonardo ever undertook (three times the width of “The Last Supper”). Although it was never completed — Leonardo abandoned it in 1506 — he left a central scene of clashing soldiers and horses that was hailed as an unprecedented study of anatomy and motion. For decades, artists like Raphael went to the Hall of 500 to see it and make their own copies.

Then it vanished. During the remodeling of the hall in 1563, the architect and painter Giorgio Vasari covered the walls with frescoes of military victories by the Medicis, who had returned to power. Leonardo’s painting was largely forgotten.

But in 1975, when Dr. Seracini studied one of Vasari’s battle scenes, he noticed a tiny flag with two words, “Cerca Trova”: essentially, seek and ye shall find. Was this Vasari’s signal that something was hidden underneath? ...

(N)ew analysis showed that the spot painted by Leonardo was right at the “Cerca Trova” clue. The even better news, obtained from radar scanning, was that Vasari had not plastered his work directly on top of Leonardo’s. He had erected new brick walls to hold his murals, and had gone to special trouble to leave a small air gap behind one section of the bricks — the section in back of “Cerca Trova.” ...

Dr. Seracini was stymied until 2005, when he appealed for help at a scientific conference and got a suggestion to send beams of neutrons harmlessly through the fresco. With help from physicists in the United States, Italy’s nuclear-energy agency and universities in the Netherlands and Russia, Dr. Seracini developed devices for identifying the telltale chemicals used by Leonardo.

One device can detect the neutrons that bounce back after colliding with hydrogen atoms, which abound in the organic materials (like linseed oil and resin) employed by Leonardo. Instead of using water-based paint for a traditional fresco in wet plaster like Vasari’s, Leonardo covered the wall with a waterproof ground layer and used oil-based paints.

The other device can detect the distinctive gamma rays produced by collisions of neutrons with the atoms of different chemical elements. The goal is to locate the sulfur in Leonardo’s ground layer, the tin in the white prime layer and the chemicals in the color pigments, like the mercury in vermilion and the copper in blue pigments of azurite. ...

Once he gets permission, Dr. Seracini said, he hopes to complete the analysis within about a year. If “The Battle of Anghiari” is proved to be there, he said, it would be feasible for Florentine authorities to bring in experts to remove the exterior fresco by Vasari, extract the Leonardo painting and then replace the Vasari fresco. Of course, no one knows what kind of shape the painting might be in today. But Dr. Seracini, who has extensively analyzed the damages suffered by many Renaissance paintings, said that he was optimistic about “The Battle of Anghiari.”

“The advantage is that it has been covered up for five centuries,” he said. “It’s been protected against the environment and vandalism and bad restorations. I don’t expect there to be much decay.”

If he is right, then perhaps Vasari did Leonardo a favor by covering up the painting — and taking care to leave that cryptic little flag above the trove.

Rubens chalk, ink, and water-color copy of Da Vinci study for “The Battle of Anghiari,” Musée du Louvre

Evidence of the former existence smaller stone circle by the Avon River at the end of an avenue leading to Stonehenge has given support to a new theory of the entire site constituting an enormous funerary complex. I had not been aware that Stonehenge was surrounded by an enormous prehistoric cemetery.

The Guardian:

Archaeologists have discovered evidence of what they believe was a second Stonehenge located a little more than a mile away from the world-famous prehistoric monument.

The new find on the west bank of the river Avon has been called “Bluestonehenge”, after the colour of the 25 Welsh stones of which it was once made up.

Excavations at the site have suggested there was once a stone circle 10 metres in diameter and surrounded by a henge – a ditch with an external bank, according to the project director, Professor Mike Parker Pearson, of the University of Sheffield.

The stones at the site were removed thousands of years ago but the sizes of the holes in which they stood indicate that this was a circle of bluestones, brought from the Preseli mountains of Wales, 150 miles away.

The standing stones marked the end of the avenue that leads from the river Avon to Stonehenge, a 1¾-mile long processional route constructed at the end of the Stone Age.

CNN:

Neolithic peoples would have come down river by boat and literally stepped off into Bluestonehenge, Pollard said. They may have congregated at certain times of the year, including the winter solstice, and carried remains of the dead from Bluestonehenge down an almost two-mile funeral processional route to a cemetery at Stonehenge to bury them.

“It could be that Bluestonehenge was where the dead began their final journey to Stonehenge,” said Mike Parker Pearson, an archaeologist at the University of Sheffield who co-directed the project with Pollard.

“Not many people know that Stonehenge was Britain’s largest burial ground at that time,” he said. “Maybe the blue stone circle is where people were cremated before their ashes were buried at Stonehenge itself.”

Daily Mail illustration

Metal detecting is a popular working man’s hobby here in the United States as well, but Americans can expect to find some coins or possibly Civil War relics. In Britain, there is a lot more history, and a lot older and more valuable treasure lying right in the fields.

The Daily Mail has terrific coverage of a spectacular new find.

The largest haul of Anglo-Saxon gold ever found has been discovered by a metal detector enthusiast on farmland in Staffordshire, it was revealed today.

Experts say the hoard, which is at least as significant as any other treasure from the Anglo-Saxon era ever unearthed, is worth millions and could have belonged to a king.

The discovery of at least 1,345 different items, thought to date back to the seventh century, is expected to redefine perceptions of the period.

Terry Herbert, from Burntwood, Staffordshire, came across the collection as he searched a field near his home with his trusty 14-year-old detector and is now in line for a seven-figure sum.

It had been hidden for more than 1,300 years but was recently thrown up by ploughing and amazingly, some was just sitting on the top of the ground.

Experts have already examined the 1,345 items but another 56 clods of earth have been X-rayed and are known to hold more metal artefacts, meaning the figure is likely to rise to around 1,500.

At least 650 are gold, weighing more than than 5kg, and another 530 are silver, weighing around 1kg. This is far bigger than previous finds – including the Sutton Hoo burial site in Suffolk.

Many of the items in the hoard are warfare paraphernalia inlaid with precious stones, including sword pommel caps and hilt plates.

Experts say it is the best example of Anglo-Saxon workmanship they have ever seen and may have belonged to Saxon royalty, possibly the King of Mercia.’

Archaeology expert Leslie Webster, who used to work at the British Museum, said: ‘(It is) absolutely the equivalent of finding a new Lindisfarne Gospels or Book of Kells.’

It was officially declared treasure by a coroner today, which means the haul will now be valued by committee of experts before being offered for sale.

They may take more than a year to value the collection and, given its scale, the financial worth will be massive.

Once a valuation and sale is complete, its market value will be split between Mr Herbert, who is unemployed, and the owner of the farmland where it was found.

Roger Bland, head of portable antiquities and treasure at the British Museum: ‘I can’t say anything other than we expect it to be a seven-figure sum.’

Hat tip to Bird Dog.

————————————————-

The gold-proud of warriors, trod the mould grassy, exulting in gold-store.—Beowulf (William Morris translation)

You can gloat over the treasure hoard looted from those puny Christians, just like a true follower of Odin, at the Staffordshire Hoard web-site.

Hat tip to William Laffer.

The Roman city of Altinum is one of the rare ancient cities of importance not continuously inhabited and built over in modern times.

The city’s history went back far into Antiquity. It was already a significant commercial center in the 5th century B.C. Its mild climate attracted wealthy Romans who built luxury villas there, mentioned by Martial. Marcus Aurelius’ co-emperor Lucius Verus perished during an epidemic at Altinum. In the Christian era, Altinum was the seat of a bishopric.

The history of Altinum came to an abrupt end when the city was destroyed by Attila the Hun in 452 A.D. Its inhabitants fled to nearby coastal islands where they founded what became the city of Venice.

Daily Mail:

(T)hanks to sophisticated aerial imagery, the lost city has been brought to life once again more than 1,500 years on.

From the ground, the 100-hectare site just north of Italy’s Venice airport looks like nothing more than rolling fields of corn and soybeans.

But researchers have managed to map out the remains of the buried city, revealing a detailed street plan of the city walls, the street network, dwellings, theatres and other structures.

They also show a complex network of rivers and canals, revealing how the people mastered the marshy environment in what is now the lagoon of Venice.

In July 2007 Paolo Mozzi, a geomorphologist at the University of Padua in Italy, and his team took aerial photos of the site in several wavelengths of visible light and in near-infrared.

The photos were taken during a severe drought in 2007, which made it possible to pick up the presence of stones, bricks and other solid structures beneath the surface.

When the images were processed to tease out subtle variations in plant water stress, a buried metropolis emerged.

Eugéne Delacroix (1798-1863), Atilla suivi de ses hordes, foule aux pieds l’Italie et les arts (Attila followed by his Horde, Trampling under Foot Italy and the Arts), Bibliothèque, Palais Bourbon, Paris, 1843-47

Jonathan Shaw in Harvard Magazine explains that studies of population DNA suggest that an effective policy of sexual apartheid practiced by the newly arrived Anglo-Saxons could have eliminated British male Y chromosomal DNA in as few as five generations. The Spanish conquistadores in Colombia and the Vikings in Scotland and Ireland left similar DNA patterns, in which the male heredity of the modern population is overwhelming traceable to the invaders, but female mitochondrial DNA predominantly descends from the conquered population.

Moral? Successful invaders get the girls. At some level, history amounts to a contest over who gets to reproduce his DNA, and who does not.

There are no signs of a massacre—no mass graves, no piles of bones. Yet more than a million men vanished without a trace. They left no descendants. Historians know that something dramatic happened in England just as the Roman empire was collapsing. When the Anglo-Saxons first arrived in that northern outpost in the fourth century a.d.—whether as immigrants or invaders is debated—they encountered an existing Romano-Celtic population estimated at between 2 million and 3.7 million people. Latin and Celtic were the dominant languages. Yet the ensuing cultural transformation was so complete, says Goelet professor of medieval history Michael McCormick, that by the eighth century, English civilization considered itself completely Anglo-Saxon, spoke only Anglo-Saxon, and thought that everyone had “come over on the Mayflower, as it were.” This extraordinary change has had ramifications down to the present, and is why so many people speak English rather than Latin or Celtic today. But how English culture was completely remade, the historical record does not say.

Then, in 2002, scientists found a genetic signature in the DNA of living British men that hinted at an untold story of Anglo-Saxon conquest. The researchers were sampling Y-chromosomes, the sex chromosome passed down only in males, from men living in market towns named in the Domesday Book of 1086. Working along an east-west transect through central England and Wales, the scientists discovered that the mix of Y-chromosomes characteristic of men in the English towns was very different from that of men in the Welsh towns: Wales was the primary Celtic holdout in Western Britannia during the ascendance of the Anglo-Saxons. Using computer analysis, the researchers explored how such a pattern could have arisen and concluded that a massive replacement of the native fourth-century male Britons had taken place. Between 50 percent and 100 percent of indigenous English men today, the researchers estimate, are descended from Anglo-Saxons who arrived on England’s eastern coast 16 centuries ago. So what happened?

Could the best climate models—the ones used to predict global warming—all be wrong?

Maybe so, says a new study published online today in the journal Nature Geoscience. The report found that only about half of the warming that occurred during a natural climate change 55 million years ago can be explained by excess carbon dioxide in the atmosphere. What caused the remainder of the warming is a mystery.

“In a nutshell, theoretical models cannot explain what we observe in the geological record,” says oceanographer Gerald Dickens, study co-author and professor of Earth Science at Rice University in Houston. “There appears to be something fundamentally wrong with the way temperature and carbon are linked in climate models.”

During the warming period, known as the “Palaeocene-Eocene thermal maximum” (PETM), for unknown reasons, the amount of carbon in Earth’s atmosphere rose rapidly. This makes the PETM one of the best ancient climate analogues for present-day Earth.

As the levels of carbon increased, global surface temperatures also rose dramatically during the PETM. Average temperatures worldwide rose by around 13 degrees in the relatively short geological span of about 10,000 years.

The conclusion, Dickens said, is that something other than carbon dioxide caused much of this ancient warming. “Some feedback loop or other processes that aren’t accounted for in these models—the same ones used by the Intergovernmental Panel on Climate Change for current best estimates of 21st century warming—caused a substantial portion of the warming that occurred during the PETM.”

Abstract:

The Palaeocene–Eocene Thermal Maximum (about 55 Myr ago) represents a possible analogue for the future and thus may provide insight into climate system sensitivity and feedbacks. The key feature of this event is the release of a large mass of 13C-depleted carbon into the carbon reservoirs at the Earth’s surface, although the source remains an open issue. Concurrently, global surface temperatures rose by 5–9 °C within a few thousand years. Here we use published palaeorecords of deep-sea carbonate dissolution, and stable carbon isotope composition, along with a carbon cycle model to constrain the initial carbon pulse to a magnitude of 3,000 Pg C or less, with an isotopic composition lighter than minus50permil. As a result, atmospheric carbon dioxide concentrations increased during the main event by less than about 70% compared with pre-event levels. At accepted values for the climate sensitivity to a doubling of the atmospheric CO2 concentration1, this rise in CO2 can explain only between 1 and 3.5 °C of the warming inferred from proxy records. We conclude that in addition to direct CO2 forcing, other processes and/or feedbacks that are hitherto unknown must have caused a substantial portion of the warming during the Palaeocene–Eocene Thermal Maximum. Once these processes have been identified, their potential effect on future climate change needs to be taken into account.

Investigations of a skeleton found buried under the floor of the chapel of Stirling Castle in 1997 have dated the remains to the Midde Ages, and forensic examination has determined that the remains were those of a well-muscled male individual, who had done considerable riding, who had been wounded in battle, and who died a violent death.

The Telegraph:

Archaeologists believe that bones found in an ancient chapel… are those of an English knight named Robert Morley who died in a tournament there in 1388.

Radio carbon dating has confirmed that the skeleton is from that period, and detailed analysis suggests that he was in his mid-20s, was heavily muscled and had suffered several serious wounds in earlier contests.

He appears to have survived for some time with a large arrowhead lodged in his chest, while the re-growth of bone around a dent in the front of his skull indicates that he had also recovered from a severe blow from an axe.

He eventually died when he was struck by a sword that sliced through his nose and jaw. His reconstructed skull also indicates that he was lying on the ground when the fatal blow was delivered.

(D)espite the warrior’s relatively young age of about 25, he may have suffered several serious wounds from earlier fights.

Researchers thinks it is also possible he may have been living for some time with a large arrowhead in his chest. ...

Some research was carried out on the skeleton at the time of its discovery, but a lack of technology meant it was difficult to assess the remains in more detail.

Since then scientists have been able to perform laser scanning which revealed the wounds.

Bone regrowth around a dent in the front of the skull suggested the man had recovered from a severe blow, possibly from an axe.

The warrior had also lost a number of teeth – perhaps from a blow, or a fall from a horse.

The fatal wound, however, occurred when something, possibly a sword, sliced through his nose and jaw.

Peter Yeoman, Historic Scotland’s head of cultural resources, said: “It appears he died in his mid-twenties after a short and violent life.

“His legs were formed in a way that was consistent with spending a lot of time on horseback, and the upper body points to someone who was well-muscled, perhaps due to extensive training with medieval weapons.

“This evidence, and the fact he was buried at the heart of a royal castle, suggests he was a person of prestige, possibly a knight.”

The skeleton was excavated from beneath a floor in 1997 when archaeologists were working in an area of the castle which turned out to be the site of a lost medieval royal chapel.

Some research was carried out at the time, but only limited information was gleaned. Advances in technology and analytical techniques prompted a re-examination of the skeleton, which produced the new results.

They showed injuries suffered prior to the man’s death, including a large arrowhead in the skeleton which appears to have struck through the back or under the arm.

Gordon Ewart, of Kirkdale Archaeology, who carried out the excavation and some of the research for Historic Scotland, said: “There were a series of wounds, including a dent in the skull from a sword or axe, where bone had re-grown, showing that he had recovered.

“At first, we had thought the arrow wound had been fatal, but it now seems he had survived it and may have had his chest bound up.

In addition to the three serious wounds, the knight lost a number of teeth — perhaps from a blow, or a fall from a horse while jousting. A large arrowhead found in the skeleton appeared to have entered through his back or under his arm. Crystalised matter attached to the arrowhead may have been from flies or other insect larvae and could have been from clothing the arrow forced into the wound.

————————————
Makes you glad you work in an office, doesn’t it?

Vero Beach 32963:

In what a top Florida anthropologist is calling “the oldest, most spectacular and rare work of art in the Americas,” an amateur Vero Beach fossil hunter has found an ancient bone etched with a clear image of a walking mammoth or mastodon.

According to leading experts from the University of Florida, the remarkable find demonstrates with new and startling certainty that humans coexisted with prehistoric animals more than 12,000 years ago in this fossil- rich region of the state.

No similar carved figure has ever been authenticated in the United States, or anywhere in this hemisphere.

The brown, mineral-hardened bone bearing the unique carving is a foot-long fragment from a larger bone that belonged to an extinct “mammoth, mastodon or ground sloth” according to Dr. Richard C. Hulbert, a vertebrate paleontologist at the Florida Museum of Natural History museum. These animals have been extinct in Florida for at least 10,000 years.

Etched into the bone by a highly sharpened stone tool or the tooth of the animal is the clear image of a walking adult mammoth or mastodon. Extensive tests over the past two months have shown that the image was created when the bone was fresh, presumably right after the animal it belonged to was killed or died.

Other accounts:

Sun Sentinel

TC Palm
—————————————-

Hat tip to Karen L. Myers

National Geographic 6:31 video

Hat tip to Karen L. Myers.

Dr. Mason Williams, retired Professor Emeritus from the University of Rhode Island, College of Engineering, has written up a succinct summary of the basic issues underlying the debate on Anthropogenic Global Warming.

Arutz Sheva reports that a research team from University of Haifa, the Arava Institute, the Geological Institute in Jerusalem, the Weizmann Institute in Rehovot, and Bar-Ilan University, working with National Geographic, has concluded that so-called “desert kites,” kite-shaped lines discovered by British pilots during the WI era, marking the surface of the Negev and Arava Deserts represent the remains of man-made Neolithic period hunting traps used to direct driven animals into pits, the same way Plains Indians used to drive buffalo herds toward unexpected cliffs.

LA Times:

Landscapers excavating for a koi pond in Boulder, Colo., found a cache of blood-spattered weapons and tools, but instead of calling the police, they summoned an archaeologist from the University of Colorado, six blocks from the site.

Douglas B. Bamforth initially thought the stone implements might have been a few hundred years old, but further studies showed that they were left behind about 13,000 years ago, making them one of only two caches of tools from that period known to exist, the university announced Wednesday. The other cache was found in Washington state.

An analysis by anthropologist Robert Yohe of Cal State Bakersfield showed that the blood came from horses, sheep, bears and a now-extinct camel—the first time a camel’s blood has been found on such a tool.

Workers building the pond for Pharmion Corp. founder Patrick Mahaffy discovered 83 items packed into an area about the size of a shoe box.

The find was made in May, but was not announced until the blood was analyzed. ...

Among the flint implements were a salad-plate-size bifacial knife; a tool resembling a double-bitted ax; small blades; and flint scrapers.

Bamforth initially suspected that the tools were ceremonial, but the blood indicates that they were used for more practical purposes.

“It looks like someone gathered together some of their most spectacular tools and other scraps of potentially useful material and stuck them into a small hole in the ground by a stream, fully expecting to come back at a later date and retrieve them,” Bamforth said.

University of Colorado press release

Hat tip to Reid Farmer.

Remember the “How to Catch a Lion in the Sahara Desert” science jokes which often used to be found on departmental bulletin back when my generation was young?

Examples:

The Hilbert (axiomatic) method

We place a locked cage onto a given point in the desert. After that we introduce the following logical system:

Axiom 1: The set of lions in the Sahara is not empty.
Axiom 2: If there exists a lion in the Sahara, then there exists a lion in the cage.
Procedure: If P is a theorem, and if the following is holds: “P implies Q”, then Q is a theorem.
Theorem 1: There exists a lion in the cage.

The geometrical inversion method

We place a spherical cage in the desert, enter it and lock it from inside. We then perform an inversion with respect to the cage. Then the lion is inside the cage, and we are outside.

The projective geometry method

Without loss of generality, we can view the desert as a plane surface. We project the surface onto a line and afterwards the line onto an interiour point of the cage. Thereby the lion is mapped onto that same point.

The Bolzano-Weierstraß method

Divide the desert by a line running from north to south. The lion is then either in the eastern or in the western part. Let’s assume it is in the eastern part. Divide this part by a line running from east to west. The lion is either in the northern or in the southern part. Let’s assume it is in the northern part. We can continue this process arbitrarily and thereby constructing with each step an increasingly narrow fence around the selected area. The diameter of the chosen partitions converges to zero so that the lion is caged into a fence of arbitrarily small diameter.

This type of scientific approach to real world tasks has not completely gone out of style, it seems. The LA Times reports that Thomas W. Gillespie and John A. Agnew, two UCLA professors of geography, et alia, in an article in MIT’s International Review, have undertaken to pin down Osama bin Laden’s current hideout, using biogeographic theory. They may be wrong, but I think we should bomb the buildings they’ve identified just for luck.

While U.S. intelligence officials have spent more than seven years searching fruitlessly for Osama bin Laden, UCLA geographers say they have a good idea of where the terrorist leader was at the end of 2001 — and perhaps where he has been in the years since.

In a new study published online today by the MIT International Review, the geographers report that simple facts, publicly available satellite imagery and fundamental principles of geography place the mastermind behind the Sept. 11 attacks against the U.S. in one of three buildings in the northwest Pakistan town of Parachinar, in the Kurram tribal region near the border with Afghanistan

The researchers advocate that the U.S. investigate — but not bomb — the three buildings. ...

The UCLA findings rely on two principles used in geography to predict the distribution of wildlife, primarily for the purposes of designing approaches to conservation. The first, known as distance-decay theory, holds that as one travels farther away from a precise location with a specific composition of species — or, in this case, a specific composition of cultural and physical factors —the probability of finding spots with that same specific composition decreases exponentially. The second, island biogeographic theory, holds that large and close islands have larger immigration rates and will support more species than smaller, more isolated islands.

Inspired by distance-decay theory, the seven-member team started by drawing concentric circles around Tora Bora on a satellite map of the area at a distance of 10 kilometers — or 6.1 miles — apart.

“The farther bin Laden moves from his last reported location into the more secular parts of Pakistan or into India, the greater the probability that he will be in an area with a different cultural composition, thereby increasing the probability of his being captured or eliminated,” Gillespie said.

Then, informed by island biogeographic theory, the researchers scoured the rings for “city islands” — or distinctly separate settlements of considerable size.

“Island biology theory predicts that he would find his way to the largest but least isolated city of that area,” said Gillespie, an authority on measuring and modeling biodiversity on Earth from space. “If you get stuck on an island, you would want it to be Hawaii rather than one with a single palm tree. It’s a matter of resources.”

The approach netted 26 cities within a 12.4-mile radius of Tora Bora on imagery from Landsat Enhanced Thematic Mapper Plus (ETM+), a global archive of satellite photos managed by NASA and the U.S. Geological Survey. With a 2.7-square-mile footprint, Parachinar turned out to be the largest and fourth-least isolated city, the team determined.

“Based on bin Laden’s last known location in Tora Bora, we estimate that he must have traveled 1.9 miles over a 13,000-foot-high pass into Kurram and then headed for the largest city, which turns out to be Parachinar,” said Agnew, who is the current president of the Association of American Geographers, the field’s leading scholarly organization.

The researchers ruled out cities on the Afghanistan side of the border because the country was occupied at the time by U.S. and international forces and has been particularly unstable ever since.

“The Pakistan side of the border is much better for hiding because of its ambiguous political status within the country and the formal absence of U.S. or NATO troops,” Agnew said.

Faced with the prospect of picking from more than 1,000 structures clearly portrayed in the satellite imagery of Parachinar, the team decided to come up with a short list of the criteria that bin Laden would need for housing, based on well-known information about him, including his height (between 6’4” and 6’6”, depending on the source), his medical condition (apparently in need of regular dialysis and, therefore, electricity to run the machine) and several basic assumptions, such as a need for security, protection, privacy and overhead cover to shield him from being spotted by planes, helicopters and satellites.

So they looked for buildings that could house someone taller than 6’4” and were surrounded by walls more than 9 feet tall (both as judged by mid-afternoon shadows depicted on the satellite imagery), and that had more than three rooms, space separating them from nearby structures, electricity and a thick tree canopy.

Only three structures fit the criteria. The buildings also appeared to be the best fortified and among the largest in Parachinar. Two are clearly residences, the study states. The third may be a prison. But whatever the third structure is, it has “one of the best maintained gardens in all of Parachinar,” the study says.

While the three structures meet all six of the criteria that the researchers believe would be required for lodging bin Laden, an additional 16 structures in Parachinar appear to meet five of the six criteria. If bin Laden is not in the first three structures, the U.S. military should investigate these other buildings, the study urges.

Science Daily:

Scientists at the Centre for Addiction and Mental Health (CAMH) have detected evidence that DNA may not be the only carrier of heritable information; a secondary molecular mechanism called epigenetics may also account for some inherited traits and diseases. These findings challenge the fundamental principles of genetics and inheritance, and potentially provide a new insight into the primary causes of human diseases.

Everyone with blue eyes shares a common matrilineal ancestor who lived between 6000 and 10000 years ago.

LiveScience

Detail of new working model

Michael Wright, former curator of London’s Science Museum has successfully reconstructed the mysterious Antikythera Mechanism, the world’s first known computer.

Wired:

A dictionary-size assemblage of 37 interlocking dials crafted with the precision and complexity of a 19th-century Swiss clock, the Antikythera mechanism was used for modeling and predicting the movements of the heavenly bodies as well as the dates and locations of upcoming Olympic games.

The original 81 shards of the Antikythera were recovered from under the sea (near the Greek island of Antikythera) in 1902, rusted and clumped together in a nearly indecipherable mass. Scientists dated it to 150 B.C. Such craftsmanship wouldn’t be seen for another 1,000 years — but its purpose was a mystery for decades.

Many scientists have worked since the 1950s to piece together the story, with the help of some very sophisticated imaging technology in recent years, including X-ray and gamma-ray imaging and 3-D computer modeling.

Now, though, it has been rebuilt. As is almost always the way with these things, it was an amateur who cracked it. Michael Wright, a former curator at the Science Museum in London, has built a replica of the Antikythera, which works perfectly.

2:43 video

New Scientist 12 December 2008 article

Earlier Antikythera Mechanism posting

FoxNews:

Archaeologists have found what they say is the oldest brain ever discovered in Britain, or at least the shriveled remnant of one, in a decapitated skull that dates back more than 2,000 years.

Inside the skull, the scientists found “a yellow substance which scans showed to be shrunken, but brain-shaped,” according to a University of York statement.

“I’m amazed and excited that scanning has shown structures which appear to be unequivocally of brain origin,” said Philip Duffey, a neurologist at York Hospital who scanned the skull. ...

The skull was found in a muddy pit unearthed during excavations on the site of the University of York’s campus expansion at Heslington East and is thought to have been a ritual offering. Nobody is sure how the brain remained preserved for so long. ...

York Archaeological Trust dig team member Rachel Cubitt reached in and, while she cleaned the soil-covered skull’s outer surface, “she felt something move inside the cranium. Peering through the base of the skull, she spotted an unusual yellow substance.”

“The survival of brain remains where no other soft tissues are preserved is extremely rare,” said Sonia O’Connor, research fellow in archaeological sciences at the University of Bradford. “This brain is particularly exciting because it is very well preserved, even though it is the oldest recorded find of this type in the U.K., and one of the earliest worldwide.”

Daily Mail:

Archaeologists have found Britain’s oldest surviving human brain in a field where it was buried 2,000 years ago during the Iron Age.

It was discovered inside a decapitated skull placed in a small pit near York.

Researchers studying the remains believe they could be from a human sacrifice…

Dr Richard Hall, director of archaeology at the York Archaeological Trust, said: ‘From the size, it was probably an adult but we can’t say whether it was a man or woman.

There is no obvious cause of death because the skull is still intact.

‘The skull must have been removed from the body.

‘We are confident that the skull was buried in this small pit and that it has lain undisturbed since the Iron Age.’

Dr Hall added: ‘It is possible that a living person has been killed and their (sic) head put into a pit for some religious purpose.’

Darker material near the top is the shrunken brain

Press TV:

A British geologist claims the Egyptian Sphinx could be much older than previously thought and might have originally had a lion’s face.

Colin Reader says the rain erosion on the Sphinx’s enclosure suggests it was built before the first pyramid was constructed about 4,500 years ago.

Reader believes the monument’s style shows that it dates back to the Early Dynastic period, making it several hundred years older than what previously thought.

Experts also found that the body of the Sphinx is disproportionate to its head, showing that the sphinx’s original head was something else – a lion for instance – and re-carved later to be modeled on Pharaoh Khufu’s face.

Since the monument already has the body of a lion, experts think it could have had the face of a lion as well, dailymail reported.

Furthermore, lion was a symbol of power to early Egyptians and the animal inhabited the wilds of Giza in ancient Egypt.

Geologist Robert Schoch was another expert who studied the Sphinx in the 1990s and claimed that it was built at least two thousand years before the widely accepted construction.

Both Reader and Schoch based their claims on the weathering features found on the Sphinx and the surrounding enclosure as well as the ones found on other Giza monuments such as the Sphinx Temple, believed to be constructed at the same time when the Sphinx was built.

Hat tip to the News Junkie.

The UN global warming conference currently underway in Poland is about to face a serious challenge from over 650 dissenting scientists from around the globe who are criticizing the climate claims made by the UN IPCC and former Vice President Al Gore. Set for release this week, a newly updated U.S. Senate Minority Report features the dissenting voices of over 650 international scientists, many current and former UN IPCC scientists, who have now turned against the UN. The report has added about 250 scientists (and growing) in 2008 to the over 400 scientists who spoke out in 2007. The over 650 dissenting scientists are more than 12 times the number of UN scientists (52) who authored the media hyped IPCC 2007 Summary for Policymakers.

Read the whole thing.

Recent carbon dating tests of the Thera Eruption provides a date contradicting the established chronological sequence of Egyptian and Cypriot pottery found on the island.

www.an.gr:

Two olive branches buried by a Minoan-era eruption of the volcano on the island of Thera (modern-day Santorini) have enabled precise radiocarbon dating of the catastrophe to 1613 BC, with an error margin of plus or minus 10 years, according to two researchers who presented conclusions of their previously published research during an event on Tuesday at the Danish Archaeological Institute of Athens.

Speaking at an event entitled “The Enigma of Dating the Minoan Eruption – Data from Santorini and Egypt”, the study’s authors, Dr. Walter Friedrich of the Danish University of Aarhus and Dr. Walter Kutschera of the Austrian University of Vienna, said data left by the branch of an olive tree with 72 annular growth rings was used for dating via the radiocarbon method, while a second olive branch—found just nine metres away from the first—was unearthed in July 2007 and has not yet been analysed. ...

On the other hand, as the two researchers pointed out, archaeological evidence linked with the Historical Dating of Ancient Egypt indicate that the Thera eruption must have occurred after the start of the New Kingdom in Egypt in 1530 BC.

The two researchers said their find (olive tree) represents a serious contradiction between the results of the scientific method (radiocarbon dating) and scholarly work in the humanities (history-archaeology), with both sides holding strong arguments to support their conclusions.

The radiocarbon dating places the cataclysmic eruption, blamed for heralding the end to the Minoan civilisation, a century earlier than previous scientific finds.

The eruption and the subsequent devastation throughout the Aegean has long piqued researchers’ interest, with many scholars pointing to Plato’s reference of the “lost continent of Atlantis” on vague memories, passed down generation to generation in the ancient Greek world, of the catastrophe.

Climate change knows three realities: science reality, which is what working scientists deal with every day; virtual reality, which is the wholly imaginary world inside computer climate models; and public reality, which is the socio-political system within which politicians, business people and the general citizenry work.

The science reality is that climate is a complex, dynamic, natural system that no one wholly comprehends, though many scientists understand different small parts. So far, science provides no unambiguous evidence that dangerous or even measurable human-caused global warming is occurring.

The virtual reality is that computer models predict future climate according to the assumptions that are programmed into them. There is no established Theory of Climate, and therefore the potential output of all realistic computer general circulation models (GCMs) encompasses a range of both future warmings and coolings, the outcome depending upon the way in which they are constructed. Different results can be produced at will simply by adjusting such poorly known parameters as the effects of cloud cover.

The public reality in 2008 is that, driven by strong environmental lobby groups and evangelistic scientists and journalists, there is a widespread but erroneous belief in our society that dangerous global warming is occurring and that it has human causation.

Read the whole thing.

————————————-

Hat tip to Bird Dog.

Physorg.com:

A hobbyist with a metal detector has found a cache of ancient Celtic and Germanic coins in a cornfield in the southern city of Maastricht. The city says the trove of 39 gold and 70 silver coins are dated to the middle of the first century B.C. The hobbyist, Paul Curfs, 47, found several coins this spring and called attention to the find, which eventually led to an archaeological investigation by Amsterdam’s Free University. ..

Nico Roymans, the archaeologist who led the academic investigation of the find, believes the gold coins in the cache were minted by a tribe called the Eburones that Caesar claimed to have wiped out in 53 B.C. after they conspired with other groups in an attack that killed 6,000 Roman soldiers.

The Eburones “put up strong resistance to Caesar’s journeys of conquest,” Roymans said.

The silver coins were made by tribes further to the north – possible evidence of cooperation against Caesar, he said.

Both coin types have triple spirals on the front, a common Celtic symbol.

Scientists at MIT have recorded a nearly simultaneous world-wide increase in methane levels. This is the first increase in ten years, and what baffles science is that this data contradicts theories stating man is the primary source of increase for this greenhouse gas. It takes about one full year for gases generated in the highly industrial northern hemisphere to cycle through and reach the southern hemisphere. However, since all worldwide levels rose simultaneously throughout the same year, it is now believed this may be part of a natural cycle in mother nature – and not the direct result of man’s contributions.

The two lead authors of a paper published in this week’s Geophysical Review Letters, Matthew Rigby and Ronald Prinn, the TEPCO Professor of Atmospheric Chemistry in MIT’s Department of Earth, Atmospheric and Planetary Science, state that as a result of the increase, several million tons of new methane is present in the atmosphere.

Measuring teeth from dead horses in upstate New York seems an unlikely way to get at the truth behind some of the most controversial questions about the Old World. But David Anthony, a historian and archaeologist at Hartwick College, discovered that by comparing the teeth of modern horses with their Eurasian ancestors, he could determine where and when the ancient ones were ridden. And answering that seemingly arcane question is important if you want to explain why nearly half the world today speaks an Indo-European language.

The origin of Indo-European tongues has roiled scholarship since a British judge in eighteenth-century Calcutta noticed that Sanskrit and English were related. Generations of linguists have labored to reconstruct the mother from which sprang dozens of languages spoken from Wales to China. Their bitter disputes about who used proto-Indo-European, where they lived, and their impact on the budding civilizations of Mesopotamia, Iran, and the Indus River Valley are legion.

That contentious debate, says Anthony, has been “alternately dryly academic, comically absurd, and brutally political.” To advance their own goals, Nazi racists, American skinheads, Russian nationalists, and Hindu fundamentalists have all latched on to the idea of light-skinned and chariot-driving Aryans as bold purveyors of an early Indo-European culture, which came to dominate Eurasia. So the search for an Indo-European homeland is now the third rail of archaeology and linguistics. Anthony compares it to the Lost Dutchman’s mine—“discovered almost everywhere but confirmed nowhere.”

Read the whole thing.
———————————————————
Hat tip to Karen L. Myers.

The New York Times summarizes an article on European Genetics from Current Biology which arrives the conclusion that it could very likely be possible to identify the nationality of Europeans by genetic testing.

Europe has been colonized three times in the distant past, always from the south. Some 45,000 years ago the first modern humans entered Europe from the south. The glaciers returned around 20,000 years ago and the second colonization occurred about 17,000 years ago by people returning from southern refuges. The third invasion was that of farmers bringing the new agricultural technology from the Near East around 10,000 years ago.

The pattern of genetic differences among present day Europeans probably reflects the impact of these three ancient migrations, Dr. Kayser said.

The map also identifies the existence of two genetic barriers within Europe. One is between the Finns (light blue, upper right) and other Europeans. It arose because the Finnish population was at one time very small and then expanded, bearing the atypical genetics of its few founders.

The other is between Italians (yellow, bottom center) and the rest. This may reflect the role of the Alps in impeding free flow of people between Italy and the rest of Europe.

Correlation between Genetic and Geographic Structure in Europe article

Results show modern humans, Neandertals diverged 660,000 years ago

An international consortium of researchers reports in the Aug. 8 Cell that for the first time the complete sequence of mitochondrial DNA from a Neandertal has been deciphered. Comparison of the Neandertal sequence with mitochondrial sequences from modern humans confirms that the two groups belong to different branches of humankind’s family tree, diverging 660,000 years ago.

That date is not statistically different from previous estimates of the split between humans and Neandertals, says Erik Trinkaus, a paleoanthropologist at Washington University in St. Louis. The sequence also doesn’t reveal what happened to drive Neandertals to extinction, but it does clear up some discrepancies in earlier studies. ...

At 16,565 bases long, the new sequence is the largest stretch of Neandertal DNA ever examined. The DNA was isolated from a 38,000-year-old bone found in a cave in Croatia.

“It’s a nice accomplishment and the next important step toward completing the Neandertal genome,” says Stephan Schuster of Pennsylvania State University in University Park. Schuster is part of a group that is sequencing the genomes of the mammoth and other extinct animals, but was not involved in the current study. “It’s a nice landmark on the way to saying what makes modern humans so special.”

In order to know exactly how modern humans and Neandertals differ, scientists will need to examine DNA from the Neandertal’s entire genome. The sequence reported in the new study was generated as part of a project to decode Neandertal DNA, but it contains information only about DNA from mitochondria.

Mitochondria are organelles that generate energy for a cell. Inside each mitochondrion is a circular piece of DNA that contains genes encoding some of the key proteins responsible for power generation. Mitochondria are passed down from mothers to their children. Scientists use variations in mitochondrial DNA as a molecular clock to tell how fast species are evolving.

Scientists have previously examined a short piece of Neandertal mitochondrial DNA known as the hypervariable region, but this new complete sequence helps clear up some ambiguities from studies comparing Neandertals and humans, says John Hawks, a biological anthropologist from the University of Wisconsin–Madison.

Some modern humans have several changes in the hypervariable region that made it seem as if Neandertals are more closely related to modern humans than humans are to each other.

“Comparing the complete mitochondrial DNA genomes of a Neandertal and many recent humans presents a very different picture,” Hawks says. “Humans are all more similar to each other, than any human is to a Neandertal. And in fact the Neandertal sequence is three or more times as different, on average, from us as we are from each other. This change from the earlier picture is a purely statistical one, but it makes a clearer picture.”

Human and Neandertal mitochondrial DNAs differ at 206 positions out of the 16,565 examined, while modern humans differ at only about 100 positions when compared with each other.

Scientists have uncovered a treasure trove of meteorological information contained in the detailed logs kept by those on board the vessels that established Britain’s great seafaring tradition including those on Nelsons’ Victory and Cook’s Endeavour.

Every Royal Naval ship kept a detailed record of climate including air pressure, wind strength, air and sea temperature and major meteorological disturbances.

A group of academics and Met Office scientists has unearthed the records dating from the 1600s and examined more than 6,000 logs, which have provided one of the world’s best sources for long-term weather data.

Their studies have raised questions about modern climate change theories. A paper by Dennis Wheeler, a geographer based at Sunderland University, recounts an increasing number of summer storms over Britain in the late 17th century.

Many scientists believe that storms are caused by global warming, but these were came during the so-called Little Ice Age that affected Europe from about 1600 to 1850.

The records also suggest that Europe saw a spell of rapid warming, similar to that experienced today, during the 1730s that must have been caused naturally.

Take my drum to England, hang et by the shore,
Strike et when your powder’s runnin’ low;
If the Dons sight Devon, I’ll quit the port o’ Heaven,
An’ drum them up the Channel as we drummed them long ago.
—Sir Francis Drake, according to Henry Newbolt.

British newspapers report that living residents of Nienstedt, a village in the foothills of the Harz Mountains in Lower Saxony, have been found by DNA analysis to be relatives of 3000-year-old Bronze Age inhabitants of the same area interred in the nearby Lichtensteinhöhle cave.

———————————————————————————————-

London Times:

The good news for two villagers in the Söse valley of Germany yesterday was that they have discovered their (127th times)-great grandparents.

The bad news is that their long-lost ancestors may have grilled and eaten other members of their clan.

Every family has its skeletons in the cave, though, so Manfred Hucht-hausen, 58, a teacher, and 48-year-old surveyor Uwe Lange remained in celebratory mood. Thanks to DNA testing of remarkably well-preserved Bronze Age bones, they can claim to have the longest proven family tree in the world. “I can trace my family back by name to 1550,” Mr Lange said. “Now I can go back 120 generations.”

Mr Lange comes from the village of Nienstedt, in Lower Saxony, in the foothills of the Harz mountain range. “We used to play in these caves as kids. If I’d known that there were 3,000-year-old relatives buried there I wouldn’t have set foot in the place.”

The cave, the Lichtensteinhöhle, is made up of five interlocked natural chambers. It stayed hidden from view until 1980 and was not researched properly until 1993. The archaeologist Stefan Flindt found 40 skeletons along with what appeared to be cult objects. ...

Analysis showed that all the bones were from the same family and the scientists speculated that it was a living area and a ceremonial burial place.

About 300 locals agreed to giving saliva swabs. Two of the cave family had a very rare genetic pattern – and a match was found.

Telegraph:

The bones of 40 people were shielded from the elements by calcium deposits that formed a protective skin around the skeletons.

All the remains turned out to be from the same family group who had a distinctive – and rare – DNA pattern.

When people in the local area were tested with saliva swabs, two nearby residents turned out to have the same distinctive genetic characteristic.

Manfred Huchthausen, a 58-year-old teacher, and Uwe Lange, a 48-year-old surveyer, now believe they are even more local than either of them thought.

———————————————————————————————-

Inma Pazos at iGENEA Forum provides more specific information.

(translated & abridged)

DNA analysis really found that 15 of 22 skeletons were relatives, constituting several generations of a family clan. In 2007, about 300 DNA samples of today’s indigenous population in Osterode-am-Harz were collected and tested for possible affinity. Susann Hummel, a leading anthropologist, has identified eleven living persons as descendants of the cave burials.

Ten lines of mtDNA haplogroup H, four of haplogroup U, two of the haplogroup J and three of the haplogroup T were identified. A further breakdown in the sub-groups succeeded in identifying U5b, T2 and J1b1. In another case, membership in sub-group U2 was considered very likely.

mtDNA haplogroups

You can’t read this excellent article by Judith Thurman, biographer of Isak Dineson, on the Paleolithic cave art of Southern France at the New Yorker web-site, but you can read it via Art & Letters Daily. Go figure.

We don’t know the purpose for which the images were made. We don’t understand why Paleolithic artists almost entirely avoided the depiction of human beings. But we marvel at their representational accuracy and their ability to move us emotionally across a separation of tens of thousands of years of time.

During the Old Stone Age, between thirty-seven thousand and eleven thousand years ago, some of the most remarkable art ever conceived was etched or painted on the walls of caves in southern France and northern Spain. After a visit to Lascaux, in the Dordogne, which was discovered in 1940, Picasso reportedly said to his guide, “They’ve invented everything.” ...

(The) earliest paintings (at Lascaux) are at least thirty-two thousand years old, yet they are just as sophisticated as much later compositions. What emerged with that revelation was an image of Paleolithic artists transmitting their techniques from generation to generation for twenty-five millennia with almost no innovation or revolt. A profound conservatism in art, (Gregory) Curtis notes, is one of the hallmarks of a “classical civilization.” For the conventions of cave painting to have endured four times as long as recorded history, the culture it served, he concludes, must have been “deeply satisfying”—and stable to a degree it is hard for modern humans to imagine.

Read the whole thing.

Submerged in recent times, there was in the Mesolithic period a land bridge connecting Britain with the continent. Fishermen working the Dogger Banks have pulled up prehistoric human artifacts in their nets, and archaeologists consequently named the sunken landscape once thick with human settlement Doggerland. Efforts at mapping Doggerland are currently underway.

Nature News:

Doggerland is key to understanding the Mesolithic in northern Europe,” says Vince Gaffney, a landscape archaeologist at the University of Birmingham, UK.

Along with his colleagues Simon Fitch and the late Ken Thomson, Gaffney established the mapping project to outline the terrain of Doggerland, named after the sandbank and shipping hazard of the Dogger Bank (see ‘Mesolithic sites around the North Sea’). They managed to borrow seismic survey data, which outline sediment layers below the seabed, from the Norwegian oil company Petroleum Geo-Services. The researchers then put their powerful computers to work to reconstruct Doggerland in three dimensions.

In a pilot project beginning in 2002, the researchers reconstructed 6,000 square metres of the ancient landscape — slightly larger than a football field. There, about 10 metres beneath the modern seabed, they discovered the course of a major ancient river, almost as big as today’s Rhine. They named it the Shotton River, after Birmingham geologist Fred Shotton who, among other things, was dropped behind enemy lines to map the geology of the Normandy beaches before the D-Day landings. Now confident that the reconstruction would work, the researchers expanded the project. The result is a 23,000-square-kilometre map of a part of Doggerland — an area the size of Wales — that they hope eventually to extend northward as well as eastward, towards the Netherlands.

Washington Post:

On a bluff overlooking the Rappahannock River, 50 miles south of the capital city that bears his name, archaeologists have unearthed a site that provides what they call the most detailed view into George Washington’s formative years: his childhood home and, likely, the objects of his youth. ..

Washington’s family moved to the property in 1738, when he was 6, and he is believed to have lived in a clapboard-covered wooden home until his 20s. ..

There are marbles and wig curlers, utensils and dinnerware. A pipe, blackened inside, carries a Masonic crest and dates to when he joined the Fredericksburg Masonic Lodge.

The announcement of the long-sought discovery came yesterday, after seven years of digging and several disappointments.

From a concentration of charred plaster, they can tell that a fire thought to have destroyed the house on Christmas Eve in 1740 was much smaller and less destructive. An expensive tea set dating to the last decade that the Washingtons lived in the house tells them that the family’s financial strain suffered after Augustine Washington’s death probably eased. And from the layout of the house, with the front door overlooking the river, they described a “literal crossroads” in Washington’s life. Ships at that time could traverse the river to the Atlantic Ocean, and the area’s roads were opening up a world to the West, Levy said. ...

Part of the difficulty with the dig arose because the land was far from untouched. Within the footprint of the house, 20th-century sewer pipes peek through the dirt, and a large area where the soil changes color reveals where Civil War troops dug a trench. In 1994, Wal-Mart proposed building a store on the property but encountered opposition from Stafford residents.

“It’s sort of a miracle that as much as the building is left, considering all the bad things that happened to it,” Muraca said.

Before finding Washington’s home, the team spent four years unearthing two other structures, only to find that one was too old and the other too new. The last one, which dated to about 1850, a century too late, became nicknamed among the crew as “Daddy’s little disappointment.”

Three years ago, team members homed in on the site where they would discover the house. They found two stone-walled cellars, two root cellars and the remains of two fireplaces. They also unearthed 500,000 artifacts, many domestic in nature and dating to the period Washington’s family would have lived there: sewing scissors, a brass wick trimmer, figurines that might have once sat on a mantel. A carnelian bead, which originated in India and made its way to Africa, was also discovered and is believed to have hung from the necklace of a slave. ...

The project, headed by the George Washington Foundation and funded by National Geographic and the Dominion Foundation, will eventually include reconstruction. The archaeologists also are hoping to find structures that accompanied the house, such as barns and slave quarters. They believe they have found a kitchen.

Newsweek

Ferry Farm website

Pipe bowl with Masonic symbol

ABSTRACT

The atmospheric greenhouse effect, an idea that authors trace back to the traditional works of Fourier 1824, Tyndall 1861, and Arrhenius 1896, and which is still supported in global climatology, essentially describes a fictitious mechanism, in which a planetary atmosphere acts as a heat pump driven by an environment that is radiatively interacting with but radiatively equilibrated to the atmospheric system. According to the second law of thermodynamics such a planetary machine can never exist. Nevertheless, in almost all texts of global climatology and in a widespread secondary literature it is taken for granted that such mechanism is real and stands on a firm scientific foundation. In this paper the popular conjecture is analyzed and the underlying physical principles are clarified. By showing that (a) there are no common physical laws between the warming phenomenon in glass houses and the fictitious atmospheric greenhouse effects, (b) there are no calculations to determine an average surface temperature of a planet, (c) the frequently mentioned difference of 33 degrees Celsius is a meaningless number calculated wrongly, (d) the formulas of cavity radiation are used inappropriately, (e) the assumption of a radiative balance is unphysical, (f) thermal conductivity and friction must not be set to zero, the atmospheric greenhouse conjecture is falsified.

PDF

The Earth is not a greenhouse. As the authors observe:

It is not the “trapped” infrared radiation, which explains the warming phenomenon in a real greenhouse, but it is the suppression of air cooling.

CONCLUSIONS:

A statistical analysis, no matter how sophisticated it is, heavily relies on underlying models and if the latter are plainly wrong then the analysis leads to nothing. One cannot detect and attribute something that does not exist for reason of principle like the CO2 greenhouse effect. There are so many unsolved and unsolvable problems in non-linearity and the climatologists believe to beat them all by working with crude approximations leading to unphysical results that have been corrected afterwards by mystic methods, flux control in the past, obscure ensemble averages over different climate institutes today, by excluding accidental global cooling results by hand, continuing the greenhouse inspired global climatologic tradition of physically meaningless averages and physically meaningless applications of mathematical statistics.

In conclusion, the derivation of statements on the CO2 induced anthropogenic global warming out of the computer simulations lies outside any science. ...

The point discussed here was to answer the question, whether the supposed atmospheric effect has a physical basis. This is not the case. In summary, there is no atmospheric greenhouse effect, in particular CO2-greenhouse effect, in theoretical physics and engineering thermodynamics. Thus it is illegitimate to deduce predictions which provide a consulting solution for economics and intergovernmental policy.

Hat tip to QandO via Bird Dog.

Israeli scientists have been able to germinate a seed found at Masada, carbon-dated to be 2000 years old, thus dating from the period when Masada was one of King Herod’s vacation homes.

The resulting tree is a specimen of the Judean date palm, Phoenix dactylifera, commonly mentioned in the Bible, and prized in Antiquity as a source of food and shade, as well as for its beauty and medicinal qualities, is thought to have become extinct around 500 A.D.

The tree’s sex is as yet unknown, and cannot be determined until the tree is mature. It is hoped that another seed of the opposite sex can also be germinated, and the species revived.

The oldest seed previously germinsted was a 1300 year old Chinese lotus.

Haaretz.com

LA Times

The palm is now 5’ tall

BBC:

Divers in France have found the oldest known bust of Roman dictator Julius Caesar at the bottom of the River Rhone, officials have said.

The marble bust was found near Arles, which was founded by Caesar.

France’s culture ministry said the bust was from 46BC, the date of the southern town’s foundation.

The ministry described the bust – which shows a lined face and a balding head – as typical of realist portraits of the Republican era.

It said other items had been found at the same site, including a 1.8m (6ft) marble statue of Neptune from the first decade of the third century AD, and two smaller statues in bronze.

Divers taking part in an archaeological excavation made the discovery between September and October 2007.

Luc Long, the archaeologist who directed the excavations, said all the busts of Caesar in Rome were posthumous.

The Guardian reports the sad news.

Albert Hofmann, the Swiss chemist who discovered the hallucinogenic drug LSD, has died aged 102.

Hofmann, known as the father of LSD, died yesterday at his home in Burg im Leimental, Basle, Switzerland.

His death was confirmed by Doris Stuker, a municipal clerk in the village where Hofmann lived following his retirement in 1971.

The California-based Multidisciplinary Association for Psychedelic Studies (Maps), which republished Hofmann’s book on LSD, said on its website that he had died from a heart attack.

Dieter A Hagenbach, a friend of 40 years, last spoke to Hofmann on Saturday. “He was in good spirits and enjoying the springtime,” said Hagenbach.

Born on January 11 1906, Hofmann discovered LSD - lysergic acid diethylamide, which later became the favoured drug of the 1960s counterculture – when a tiny quantity leaked on to his hand during a laboratory experiment in 1943.

He noted a “remarkable restlessness, combined with slight dizziness” that made him stop his work. “At home I lay down and sank into a not unpleasant intoxication-like condition, characterised by an extremely stimulated imagination,” Hofmann wrote in his book LSD: My Problem Child.

“In a dreamlike state, with eyes closed (I found the daylight too unpleasantly glaring), I perceived an uninterrupted stream of fantastic pictures, extraordinary shapes with intense, kaleidoscopic play of colours. After some two hours this condition faded away.”

A few days later, Hofmann intentionally took a dose of LSD and experienced the world’s first “bad trip”.

“On the way home, my condition began to assume threatening forms. Everything in my field of vision wavered and was distorted as if seen in a curved mirror,” he said.

“My surroundings had now transformed themselves in more terrifying ways. A demon had invaded me, had taken possession of my body, mind, and soul. I jumped up and screamed, trying to free myself from him, but then sank down again and lay helpless on the sofa. The substance, with which I had wanted to experiment, had vanquished me.” ...

Hofmann and his scientific colleagues hoped LSD would make an important contribution to psychiatric research. The drug exaggerated inner problems and conflicts and it was hoped it might be used to treat mental illnesses such as schizophrenia.

For a time, the laboratory where he worked, Sandoz, sold LSD 25 under the name Delysid, encouraging doctors to try it themselves. It was one of the strongest drugs in medicine, with just one gram enough to drug an estimated 10,000 to 20,000 people for 12 hours.

The US government banned LSD in 1966, following stories of heavy users suffering permanent psychological damage, and other countries followed suit.

The president of Maps, Rick Doblin, said he had spoken to Hofmann on the phone recently “and he was happy and fulfilled. He’d seen the renewal of LSD psychotherapy research with his own eyes.”

“Don’t Eat that Hot Dog!”—1960’s Anti-LSD Propaganda short

3:37 video

And he only lived to 102!

————————————————————-

Hat tip to Karen L. Myers.

Human beings may have had a brush with extinction 70,000 years ago, an extensive genetic study suggests. The human population at that time was reduced to small isolated groups in Africa, apparently because of drought, according to an analysis released Thursday.

The report notes that a separate study by researchers at Stanford University estimated the number of early humans may have shrunk as low as 2,000 before numbers began to expand again in the early Stone Age.

“This study illustrates the extraordinary power of genetics to reveal insights into some of the key events in our species’ history,” Spencer Wells, National Geographic Society explorer in residence, said in a statement. “Tiny bands of early humans, forced apart by harsh environmental conditions, coming back from the brink to reunite and populate the world. Truly an epic drama, written in our DNA.”

Wells is director of the Genographic Project, launched in 2005 to study anthropology using genetics. The report was published in the American Journal of Human Genetics.

Previous studies using mitochondrial DNA — which is passed down through mothers — have traced modern humans to a single “mitochondrial Eve,” who lived in Africa about 200,000 years ago.

The migrations of humans out of Africa to populate the rest of the world appear to have begun about 60,000 years ago, but little has been known about humans between Eve and that dispersal.

The new study looks at the mitochondrial DNA of the Khoi and San people in South Africa which appear to have diverged from other people between 90,000 and 150,000 years ago.

The BBC reports the study’s conclusion that mankind nearly split into two separate species at the same time.

Ancient humans started down the path of evolving into two separate species before merging back into a single population, a genetic study suggests.

The genetic split in Africa resulted in distinct populations that lived in isolation for as much as 100,000 years, the scientists say.

This could have been caused by arid conditions driving a wedge between humans in eastern and southern Africa.

————————————————————————-

Behar et al., The Dawn of Human Matrilineal Diversity, The American Journal of Human Genetics (2008), doi:10.1016/j.ajhg.2008.04.002

In the scientific equivalent of the board game Clue, teams of biologists have been sifting spotty evidence and pointing to various culprits in the widespread vanishing of harlequin frogs.

The amphibians, of the genus Atelopus — actually toads despite their common name — once hopped in great numbers along stream banks on misty slopes from the Andes to Costa Rica. After 20 years of die-offs, they are listed as critically endangered by conservation groups and are mainly seen in zoos.

It looked as if one research team was a winner in 2006 when global warming was identified as the “trigger” in the extinctions by the authors of a much-cited paper in Nature. The researchers said they had found a clear link between unusually warm years and the vanishing of mountainside frog populations.

The “bullet,” the researchers said, appeared to be a chytrid fungus that has attacked amphibian populations in many parts of the world but thrives best in particular climate conditions. ...

Other researchers have been questioning that connection. Last year, two short responses in Nature questioned facets of the 2006 paper. In the journal, Dr. Pounds and his team said the new analyses in fact backed their view that “global warming contributes to the present amphibian crisis,” but avoided language saying it was “a key factor,” as they wrote in 2006.

Now, in the March 25 issue of PLoS Biology, another team argues that the die-offs of harlequins and some other amphibians reflect the spread and repeated introductions of the chytrid fungus. They question the analysis linking the disappearances to climate change. ...

“There is so much we still do not know!” David B. Wake, a biologist at the University of California, Berkeley, wrote in an e-mail note after reading the new paper. The origin of the fungus and the way it kills amphibians remain unknown, he said, and there are ample mysteries about why it breaks out in certain places and times and not others.

Ah! but here we go, wait for it, here comes the Times’ conclusion:

Ross A. Alford, a tropical biologist at James Cook University in Townsville, Australia, said such scientific tussles, while important, could be a distraction, particularly when considering the uncertain risks attending global warming.

“Arguing about whether we can or cannot already see the effects,” he said, “is like sitting in a house soaked in gasoline, having just dropped a lit match, and arguing about whether we can actually see the flames yet, while waiting to see if maybe it might go out on its own.”

Every time some agency in the Bush Administration declines to place the US Government’s official imprimatur on a particular piece of environmentalist agitprop concocted by a moonbat working on the taxpayer’s dime, the aggrieved moonbat runs leaking to the New York Times, which duly cranks out another “Bush Suppresses Science” headline destined to echo around the left side of the blogosphere throughout eternity.

But you didn’t see any story in the Times or Post about the case of atmospheric physicist Ferenc Miskolczi, forced to resign from NASA when supervisors declined to allow his research to be released.

DailyTech:

Miklós Zágoni isn’t just a physicist and environmental researcher. He is also a global warming activist and Hungary’s most outspoken supporter of the Kyoto Protocol. Or was.

That was until he learned the details of a new theory of the greenhouse effect, one that not only gave far more accurate climate predictions here on Earth, but Mars too. The theory was developed by another Hungarian scientist, Ferenc Miskolczi, an atmospheric physicist with 30 years of experience and a former researcher with NASA’s Langley Research Center.

After studying it, Zágoni stopped calling global warming a crisis, and has instead focused on presenting the new theory to other climatologists. The data fit extremely well. “I fell in love,” he stated at the International Climate Change Conference this week.

“Runaway greenhouse theories contradict energy balance equations,” Miskolczi states. Just as the theory of relativity sets an upper limit on velocity, his theory sets an upper limit on the greenhouse effect, a limit which prevents it from warming the Earth more than a certain amount.

How did modern researchers make such a mistake? They relied upon equations derived over 80 years ago, equations which left off one term from the final solution.

Since there was inevitably less female participation in athletics, the only way the required “substantial proportionality” could be achieved was pouring money and recruiting effort into female sports while actively reducing male participation. Colleges consequently often, in deference to Title IX, deliberately eliminated lesser (non-profit center) male sports, such as wrestling, swimming, fencing, gymnastics, and volleyball.

Christina Hoff Summers explains that coercive egalitarianism’s new objective is the sciences.

The problem:

Math 55 is advertised in the Harvard catalog as “prob­ably the most difficult undergraduate math class in the country.” It is leg­endary among high school math prodigies, who hear terrifying stories about it in their computer camps and at the Math Olympiads. Some go to Harvard just to have the opportunity to enroll in it. Its formal title is “Honors Advanced Calculus and Linear Algebra,” but it is also known as “math boot camp” and “a cult.” The two-semester fresh­man course meets for three hours a week, but, as the catalog says, homework for the class takes between 24 and 60 hours a week.

Math 55 does not look like America. Each year as many as 50 students sign up, but at least half drop out within a few weeks. As one former student told The Crimson newspaper in 2006, “We had 51 students the first day, 31 students the second day, 24 for the next four days, 23 for two more weeks, and then 21 for the rest of the first semester.” Said another student, “I guess you can say it’s an episode of ‘Survivor’ with people voting themselves off.” The final class roster, according to The Crimson: “45 percent Jewish, 18 percent Asian, 100 percent male.”

Why do women avoid classes like Math 55? Why, in fact, are there so few women in the high echelons of academic math and in the physi­cal sciences?

Women now earn 57 percent of bachelors degrees and 59 percent of masters degrees. According to the Survey of Earned Doctorates, 2006 was the fifth year in a row in which the majority of research Ph.D.’s awarded to U.S. citizens went to women. Women earn more Ph.D.’s than men in the humanities, social sciences, education, and life sciences. Women now serve as presidents of Harvard, MIT, Princeton, the University of Pennsylvania, and other leading research universities. But elsewhere, the figures are different. Women comprise just 19 percent of tenure-track professors in math, 11 percent in physics, 10 percent in computer science, and 10 percent in electrical engineering. And the pipeline does not promise statistical parity any time soon: women are now earning 24 percent of the Ph.D.’s in the physical sciences—way up from the 4 percent of the 1960s, but still far behind the rate they are winning doctorates in other fields.

The solution:

“The change is glacial,” says Debra Rolison, a physical chemist at the Naval Research Laboratory.

Rolison, who describes herself as an “uppity woman,” has a solution. A popular anti–gender bias lecturer, she gives talks with titles like “Isn’t a Millennium of Affirmative Action for White Men Sufficient?” She wants to apply Title IX to science education. Title IX, the celebrated gender equity provision of the Education Amendments Act of 1972, has so far mainly been applied to college sports. But the measure is not limited to sports. It provides, “No person in the United States shall, on the basis of sex…be denied the benefits of…any education program or activity receiving federal financial assistance.” ...

..in her enthusiasm for Title IX, Rolison is not alone.

On October 17, 2007, a subcommittee of the House Committee on Science and Technology convened to learn why women are “underrepresented” in academic professorships of science and engineering and to consider what the federal government should do about it.

As a rule, women tend to gravitate to fields such as education, English, psychology, biol­ogy, and art history, while men are much more numerous in physics, mathematics, computer science, and engineering. Why this is so is an interesting question—and the subject of a sub­stantial empirical literature. The research on gender and vocation is complex, vibrant, and full of reasonable disagreements; there is no single, simple answer.

There were, however, no disagreements at the congressional hearing. All five expert wit­nesses, and all five congressmen, Democrat and Republican, were in complete accord. They attributed the dearth of women in university science to a single cause: sexism. And there was no dispute about the solution. All agreed on the need for a revolutionary transformation of American science itself. “Ultimately,” said Kathie Olsen, deputy director of the National Science Foundation, “our goal is to transform, institution by institution, the entire culture of science and engineering in America, and to be inclusive of all—for the good of all.”

Representative Brian Baird, the Washington-state Democrat who chairs the Subcommittee on Research and Science Education, looked at the witnesses and the crowd of more than 100 highly appreciative activists from groups like the American Association of University Women and the National Women’s Law Center and asked, “What kind of hammer should we use?”

From Jim Bass via The Barrister.

Imagine the Book of All Species: a single volume made up of one-page descriptions of every species known to science. On one page is the blue-footed booby. On another, the Douglas fir. Another, the oyster mushroom. If you owned the Book of All Species, you would need quite a bookshelf to hold it. Just to cover the 1.8 million known species, the book would have to be more than 300 feet long. And you’d have to be ready to expand the bookshelf strikingly, because scientists estimate there are 10 times more species waiting to be discovered.

An Online Catalog of Biodiversity It sounds surreal, and yet scientists are writing the Book of All Species. Or to be more precise, they are building a Web site called the Encyclopedia of Life (www.eol.org). On Thursday its authors, an international team of scientists, will introduce the first 30,000 pages, and within a decade, they predict, they will have the other 1.77 million.

While many of those pages may be sparse at first, the authors hope that the world’s scientific community will pool all of its knowledge on the pages.

A few weeks ago I speculated what would happen if human-caused significant global warming (AGW) turned out to be false. There might be a number of people who will refuse to give up on the idea, even though it is false, because their desire that AGW be true would be overwhelming.

I guessed that these people would slip into pseudoscience, and so would need to generate excuses why we have not yet seen the effects of AGW. One possibility was human-created dust (aerosols) blocking incoming solar radiation. Another was “bad data”: AGW is true, the earth really is warmer, but the data somehow are corrupted. And so on.

I failed to anticipate the most preposterous excuse of all. I came across it while browsing the excellent site Climate Debate Daily, which today linked to Coby Beck’s article “How to Talk to a Global Warming Sceptic“. Beck gives a list of arguments typically offered by “skeptics” and then attempts to refute them. Some of these refutations are good, and worth reading.

His attempt at rebutting the skeptical criticism “The Modelers Won’t Tell Us How Confident the Models Are” furnishes us with our pseudoscientific excuse. The skeptical objection is

There is no indication of how much confidence we should have in the models. How are we supposed to know if it is a serious prediction or just a wild guess?

and Beck’s retort is

There is indeed a lot of uncertainty in what the future will be, but this is not all because of an imperfect understanding of how the climate works. A large part of it is simply not knowing how the human race will react to this danger and/or how the world economy will develope. Since these factors control what emissions of CO2 will accumulate in the atmosphere, which in turn influences the temperature, there is really no way for a climate model to predict what the future will be.

This is as lovely a non sequitur as you’re ever likely to find. I can’t help but wonder if he blushed when he wrote it; I know I did when I read it. This excuse is absolutely bullet proof. I am in awe of it. There is no possible observation that can negate it. Whatever happens is a win for its believer. If the temperature goes up, the believer can say, “Our theories predicted this.” If the temperature goes down, the believer can say, “There was no way to know the future.”

What the believer in this statement is asking us to do, if it is not already apparent, is this: he wants you to believe that his prognostications are true because AGW is true, but he also wants you to believe that he should not be held accountable for his predictions should they fail because AGW is true. Thus, AGW is just true.

Authorities remained on the scene Tuesday of a Chesterfield County neighborhood where munitions exploded and killed a homeowner who sold Civil War relics.

Chesterfield County Police said neighbors reported the explosion Monday afternoon after hearing the blast and then finding the victim fatally injured in his backyard near a detached garage.

Police identified the victim Tuesday as Samuel H. White, 53.

Authorities found other unexploded military ordnance at the house, and evacuated about two dozen homes nearby until authorities could determine the area was safe. Police spokeswoman Ann Reid said the evacuation would remain in effect indefinitely.

Tuesday afternoon, police continued to collect and detonate ordnance.

White ran a Web site called Sam White Relics. The site contains photos of various relics for sale, such as Civil War artillery shells, cannonballs, bullets and other artifacts.

White said on the site he “will disarm, clean, and preserve your Civil War period and earlier military ordinance” for about $35 a piece.

“I’ve done approx. 500 artillery projectiles and still have all my fingers (I must be doing something right, knock on wood)!” the site states.

Neighbor Brian Dunkerly told the Richmond Times-Dispatch that a chunk of the ordnance flew into the air and smashed through the front-porch roof of his home about one-quarter-mile away. The piece of metal—weighing close to 15 pounds—then shattered his glass front door, hit the interior wood floor and bounced to the ceiling before coming to rest in the center of his living room.

Fellow relic dealer Harry Ridgway writes:

An accident occurred while disarming a Civil War projectile, long time collector Sam White, Chesterfield Va was killed in the accident. This is a horrible tragedy, Sam White was one of the good guys in this business, and I am very much saddened by his loss. I offer my prayers and condolence.

Sam had years of experience disarming and restoring Civil War ordnance and was highly respected. I believe that he used good techniques, but obviously something failed with this accident. The complete details are not known at this point, but it appears that he must have been drilling a large shell outside his house and did not use his remote rig. The news media showed pictures of a large fragment, likely from a round ball 8 inches or larger.

Notwithstanding recent accidents, Civil War ordnance is not dangerous to handle or display and is desirable to collect. All shells in a personal collection should be disarmed to ultimately be considered safe, but mere displaying or handling Civil War ordnance is not inherently dangerous. The two events that can cause danger are extreme heat or mechanical stimulus.

The black powder used in Civil War ordnance needs heat in the region of 500 degrees F to ignite, so it takes extreme heat such as a burning building, a fire or some other extreme heat to ignite black powder.

Mechanical stimulus can be hazardous, such as attempting to smash a shell with a sledge hammer or shooting a shell with a high powered modern rifle or something of the like. Drilling a shell to remove or wet the powder is the preferred method to render a shell inert, but the drilling process can create hazard. Ironically, the safest thing to do with a Civil War shell is to simply leave it alone. However ultimately it is good practice to disarm a shell to render it inert. This is done by drilling a hole into the chamber and wetting and removing the powder inside. Once the powder inside the cavity is wet or removed, the shell is inert and represents no continuing danger.

The accident with Sam White apparently occurred while drilling, although this is not fully confirmed yet.

A study published in Science Magazine today presents new evidence supporting the abiotic theory for the origin of oil, which asserts oil is a natural product the Earth generates constantly rather than a “fossil fuel” derived from decaying ancient forests and dead dinosaurs.

The lead scientist on the study – Giora Proskurowski of the School of Oceanography at the University of Washington in Seattle – says the hydrogen-rich fluids venting at the bottom of the Atlantic Ocean in the Lost City Hydrothermal Field were produced by the abiotic synthesis of hydrocarbons in the mantle of the earth.

The abiotic theory of the origin of oil directly challenges the conventional scientific theory that hydrocarbons are organic in nature, created by the deterioration of biological material deposited millions of years ago in sedimentary rock and converted to hydrocarbons under intense heat and pressure. ...

The abiotic theory argues, in contrast, that hydrocarbons are naturally produced on a continual basis throughout the solar system, including within the mantle of the earth. The advocates believe the oil seeps up through bedrock cracks to deposit in sedimentary rock. Traditional petro-geologists, they say, have confused the rock as the originator rather than the depository of the hydrocarbons. ...

Lost City is a hypothermal field some 2,100 feet below sea level that sits along the Mid-Atlantic Ridge at the center of the Atlantic Ocean, noted for strange 90 to 200 foot white towers on the sea bottom.

In 2003 and again in 2005, Proskurowski and his team descended in a scientific submarine to collect liquid bubbling up from Lost City sea vents.

Proskurowski found hydrocarbons containing carbon-13 isotopes that appeared to be formed from the mantle of the Earth, rather than from biological material settled on the ocean floor.

Carbon 13 is the carbon isotope scientists associate with abiotic origin, compared to Carbon 12 that scientists typically associate with biological origin.

Proskurowski argued that the hydrocarbons found in the natural hydrothermal fluids coming out of the Lost City sea vents is attributable to abiotic production by Fischer-Tropsch, or FTT, reactions.

The Fischer-Tropsch equations were first developed by Nazi scientists who created methodologies for producing synthetic oil from coal.

“Our findings illustrate that the abiotic synthesis of hydrocarbons in nature may occur in the presence of ultramafic rocks, water and moderate amounts of heat,” Proskurowski wrote.

The study also confirmed a major argument of Cornell University physicist Thomas Gold, who argued in his book “The Deep Hot Biosphere: The Myth of Fossil Fuels” that micro-organisms found in oil might have come from the mantle of the earth where, absent photosynthesis, the micro-organisms feed on hydrocarbons arising from the earth’s mantle in the dark depths of the ocean floors.

Affirming this point, Proskurowski concluded the article by noting, “Hydrocarbon production by FTT could be a common means for producing precursors of life-essential building blocks in ocean-floor environments or wherever warm ultramafic rocks are in contact with water.”

abstract

Earlier post on Abiotic Natural Gas containing useful link.

Genetic studies apparently have found a mutation which took place 6-10,000 years ago and is the cause of the eye color of all blue-eyed humans alive on the planet today.

But aren’t the divergences of the predominant European Ydna and mtDNA haplogroups a good deal older than that?

Hat tip to Karen L. Myers.

‘The fact is that the global temperature of 2007 is statistically the same as 2006 and every year since 2001’

Global warming stopped? Surely not. What heresy is this? Haven’t we been told that the science of global warming is settled beyond doubt and that all that’s left to the so-called sceptics is the odd errant glacier that refuses to melt?

Aren’t we told that if we don’t act now rising temperatures will render most of the surface of the Earth uninhabitable within our lifetimes? But as we digest these apocalyptic comments, read the recent IPCC’s Synthesis report that says climate change could become irreversible. Witness the drama at Bali as news emerges that something is not quite right in the global warming camp.

With only few days remaining in 2007, the indications are the global temperature for this year is the same as that for 2006 – there has been no warming over the 12 months.

But is this just a blip in the ever upward trend you may ask? No.

The fact is that the global temperature of 2007 is statistically the same as 2006 as well as every year since 2001. Global warming has, temporarily or permanently, ceased. Temperatures across the world are not increasing as they should according to the fundamental theory behind global warming – the greenhouse effect. Something else is happening and it is vital that we find out what or else we may spend hundreds of billions of pounds needlessly. ...

It was a pity that the delegates at Bali didn’t discuss this or that the recent IPCC Synthesis report did not look in more detail at this recent warming standstill. Had it not occurred, or if the flatlining of temperature had occurred just five years earlier we would have no talk of global warming and perhaps, as happened in the 1970’s, we would fear a new Ice Age! Scientists and politicians talk of future projected temperature increases. But if the world has stopped warming what use these projections then?

Some media commentators say that the science of global warming is now beyond doubt and those who advocate alternative approaches or indeed modifications to the carbon dioxide greenhouse warming effect had lost the scientific argument. Not so.

Certainly the working hypothesis of CO2 induced global warming is a good one that stands on good physical principles but let us not pretend our understanding extends too far or that the working hypothesis is a sufficient explanation for what is going on.

I have heard it said, by scientists, journalists and politicians, that the time for argument is over and that further scientific debate only causes delay in action. But the wish to know exactly what is going on is independent of politics and scientists must never bend their desire for knowledge to any political cause, however noble.

The science is fascinating, the ramifications profound, but we are fools if we think we have a sufficient understanding of such a complicated system as the Earth’s atmosphere’s interaction with sunlight to decide. We know far less than many think we do or would like you to think we do. We must explain why global warming has stopped.

ABSTRACT

A review of the research literature concerning the environmental consequences of increased levels of atmospheric carbon dioxide leads to the conclusion that increases during the 20th and early 21st centuries have produced no deleterious effects upon Earth’s weather and climate. Increased carbon dioxide has, however, markedly increased plant growth. Predictions of harmful climatic effects due to future increases in hydrocarbon use and minor greenhouse gases like CO2 do not conform to current experimental knowledge. The environmental effects of rapid expansion of the nuclear and hydrocarbon energy industries are discussed.

Summary Excerpt:

Predictions of catastrophic global warming are based on computer climate modeling, a branch of science still in its infancy. The empirical evidence – actual measurements of Earth’s temperature and climate – shows no man-made warming trend. Indeed, during four of the seven decades since 1940 when average CO2 levels steadily increased, U.S. average temperatures were actually decreasing. While CO2 levels have increased substantially and are expected to continue doing so and humans have been responsible for part of this increase, the effect on the environment has been benign.

There is, however, one very dangerous possibility.

Our industrial and technological civilization depends upon abundant, low-cost energy. This civilization has already brought unprecedented prosperity to the people of the more developed nations. Billions of people in the less developed nations are now lifting themselves from poverty by adopting this technology.

Hydrocarbons are essential sources of energy to sustain and extend prosperity. This is especially true of the developing nations, where available capital and technology are insufficient to meet rapidly increasing energy needs without extensive use of hydrocarbon fuels. If, through misunderstanding of the underlying science and through misguided public fear and hysteria, mankind significantly rations and restricts the use of hydrocarbons, the worldwide increase in prosperity will stop. The result would be vast human suffering and the loss of hundreds of millions of human lives. Moreover, the prosperity of those in the developed countries would be greatly reduced.