SCIENCE DAILY– Hans Thewissen, Ph.D., Professor of the Department of Anatomy, Northeastern Ohio Universities Colleges of Medicine and Pharmacy (NEOUCOM), has announced the discovery of the missing link between whales and their four-footed ancestors.

Scientists since Darwin have known that whales are mammals whose ancestors walked on land, and in the past 15 years, researchers led by Dr. Thewissen have identified a series of intermediate fossils documenting whale’s dramatic evolutionary transition from land to sea. But one step was missing: The identity of the land ancestors of whales.

Now Dr. Thewissen and colleagues discovered of the skeleton of Indohyus, an approximately 48-million-year-old even-toed ungulate from the Kashmir region of India, as the closest known fossil relative of whales. Dr. Thewissen’s team studied a layer of mudstone with hundreds of bones of Indohyus, a fox-sized mammal that looked something like a miniature deer.

Dr. Thewissen and colleagues report key similarities between whales and Indohyus in the skull and ear that show their close family relationship.

Thewissen and colleagues also explored how Indohyus lived, and came up with some surprising results.  They determined that the bones of the skeleton of Indohyus had a thick outside layer, much thicker than in other mammals of this size.  This characteristic is often seen in mammals that are slow aquatic waders, such as the hippopotamus today.  Indohyus’ aquatic habits are further confirmed by the chemical composition of their teeth, which revealed oxygen isotope ratios similar to those of aquatic animals.  All this implies that Indohyus spent much of its time in water.

Dr. Walt Horton, Vice-President for Research at NEOUCOM commented:  “This remarkable research demonstrates that the study of the structure and composition of fossil bones can tell us about how the skeleton of whales and, by extension, other mammals like humans, interacts with the environment and changes over time.”

Read the full article on Whales Descended From Tiny Deer-Like Ancestors.

© 2011 Science Daily

Photo courtesy of Northeastern Ohio Universities Colleges of Medicine and Pharmacy

KURZWEILAI– University of Michigan Center for Wireless Integrated Microsystems professor Euisik Yoon and colleagues are developing a next-generation design for a brain-computer interface (BCI): a brain implant called BioBolt.

This patent-pending invention could someday allow some disabled patients to control an arm muscle (or other muscles) by just thinking about the movement — without wires keeping them immobilized in a chair.

A bolt implanted in the skull would contain an ASIC (application-specific integrated circuit) microchip under the skin in the skull. It would pick up and process neural signals, and transmit them via the skin directly to a receiver located in or near the target muscle group (such as an arm or hand).

Read full article about New Brain-Computer, Mind-Control Technology.

© 2011 Kurzweilai

Photo by flickr user Blatant Truth

RAW STORY– Scientists said Sunday they had trapped and stored antihydrogen atoms for a record 16 minutes, a stunning technical feat that promises deeper insights into the mysteries of antimatter.

Particles and anti-particles annihilate each other in a small flash of energy when they collide.

At the moment of the big bang, nearly 14 billion years ago, matter and antimatter are thought to have existed in equal quantities. If that balance had persisted, the observable Universe we inhabit would never have come into being.

For unknown reasons — and fortunately for us — Nature seemed to have a slight preference for matter, and today antimatter is rare.

This asymmetry remains one of the greatest riddles in particle physics.

Ongoing low-energy experiments with hydrogen atoms could be a key step toward solving it.

“We can keep the antihydrogen atoms trapped for 1,000 seconds. This is long enough to begin to study them — even with the small number that we can catch so far,” said Jeffrey Hangst, spokesman for the ALPHA team conducting the tests at the European Organisation for Nuclear Research (CERN) in Geneva.

In the study, published in the journal Nature Physics, researchers report trapping some 300 antiatoms.

Scientists used CERN’s high-energy accelerator to create the antihydrogen atoms, and then chilled them to near-zero temperatures.

The aim is to use laser and microwave spectroscopy to compare the immobilised particles to their hydrogen counterparts.

The same team succeeded last fall in trapping dozens of antimatter atoms and holding them in place for a fraction of a second, a world first at the time.

But that was not long enough for the excitable particles to settle into the stable “ground” state needed for precise measurements.

The new benchmark extended this storage time 5,000 fold, making it possible to carry out crucial experiments.

Read the full story about Scientists ‘Trap’ Anti-Matter for Record 16 Minutes.

© 2011 RAW STORY

Photo by Flickr user Fire Brace

NATIONAL GEOGRAPHIC– Every now and then the dawn of civilization is reenacted on a remote hilltop in southern Turkey.

The reenactors are busloads of tourists—usually Turkish, sometimes European. The buses (white, air-conditioned, equipped with televisions) blunder over the winding, indifferently paved road to the ridge and dock like dreadnoughts before a stone portal. Visitors flood out, fumbling with water bottles and MP3 players. Guides call out instructions and explanations. Paying no attention, the visitors straggle up the hill. When they reach the top, their mouths flop open with amazement, making a line of perfect cartoon O’s.

Before them are dozens of massive stone pillars arranged into a set of rings, one mashed up against the next. Known as Göbekli Tepe (pronounced Guh-behk-LEE TEH-peh), the site is vaguely reminiscent of Stonehenge, except that Göbekli Tepe was built much earlier and is made not from roughly hewn blocks but from cleanly carved limestone pillars splashed with bas-reliefs of animals—a cavalcade of gazelles, snakes, foxes, scorpions, and ferocious wild boars. The assemblage was built some 11,600 years ago, seven millennia before the Great Pyramid of Giza. It contains the oldest known temple. Indeed, Göbekli Tepe is the oldest known example of monumental architecture—the first structure human beings put together that was bigger and more complicated than a hut. When these pillars were erected, so far as we know, nothing of comparable scale existed in the world.

At the time of Göbekli Tepe’s construction much of the human race lived in small nomadic bands that survived by foraging for plants and hunting wild animals. Construction of the site would have required more people coming together in one place than had likely occurred before. Amazingly, the temple’s builders were able to cut, shape, and transport 16-ton stones hundreds of feet despite having no wheels or beasts of burden. The pilgrims who came to Göbekli Tepe lived in a world without writing, metal, or pottery; to those approaching the temple from below, its pillars must have loomed overhead like rigid giants, the animals on the stones shivering in the firelight—emissaries from a spiritual world that the human mind may have only begun to envision.

Archaeologists are still excavating Göbekli Tepe and debating its meaning. What they do know is that the site is the most significant in a volley of unexpected findings that have overturned earlier ideas about our species’ deep past. Just 20 years ago most researchers believed they knew the time, place, and rough sequence of the Neolithic Revolution—the critical transition that resulted in the birth of agriculture, taking Homo sapiens from scattered groups of hunter-gatherers to farming villages and from there to technologically sophisticated societies with great temples and towers and kings and priests who directed the labor of their subjects and recorded their feats in written form. But in recent years multiple new discoveries, Göbekli Tepe preeminent among them, have begun forcing archaeologists to reconsider.

Read full article on Göbekli Tepe – The Birth of Religion.

©2011 National Geographic

Photo by flickr user *saipal

NPR– When you think archeology, you think shovels, brushes, brooms and other time-honored tools used to uncover archeological treasures. Now a new way to peer beneath the Earth’s surface may have made an exciting find: more pyramids, buried deep under an ancient Egyptian city.

By studying infrared images taken by NASA satellites, Sarah Parcak and her team from the University of Alabama at Birmingham identified the suspected pyramids in Tanis, Egypt. The ancient city, abandoned centuries ago, is famous as the fictional home of the Lost Ark from the Indiana Jones movies. Satellite images also showed other lost structures, like tombstones and houses, buried for thousands of years.

“What these satellites do is they record light radiation that’s reflected off the surface of the Earth in different parts of the light spectrum,” Parcak explains to NPR’s Rachel Martin. “We use false color imaging to try to tease out these very subtle differences on the ground.”

Those subtle differences are an archaeologist’s clues to what might lie under a rice paddy or a city street. “You just pull back for hundreds of miles using the satellite imagery, and all of a sudden this invisible world become visible,” Parcak says. “You’re actually able to see settlements and tombs — and even things like buried pyramids — that you might not otherwise be able to see.”

What Parcak’s team actually found was 17 structures that had a similar size, shape and orientation to other pyramids in the area. Initial excavations indicate that at least two of the structures are most likely pyramids, but Parcak warns, “we’re not going to be able to say with a 100-percent certainty that they are pyramids until they’re excavated.”

Read full article and transcript of broadcast at 17 Hidden Pyramids Discovered with Satellite.

© 2011 NPR

Photo by Flickr user apdk