Monday, April 12, 2010

Town From Before Invention Of Wheel Revealed

The Tell Zeidan site is about 48 feet high at its tallest point and covers about 30 acres. It sits in an area of irrigated fields at the junction of the Euphrates and Balikh Rivers in what is now northern Syria. Credit: Gil Stein, Oriental Institute, University of Chicago.

From Live Science:

A prehistoric town that had remained untouched beneath the ground near Syria for 6,000 years is now revealing clues about the first cities in the Middle East prior to the invention of the wheel.

The town, called Tell Zeidan, dates from between 6000 B.C. and 4000 B.C., and immediately preceded the world's first urban civilizations in the ancient Middle East. It is one of the largest sites of the Ubaid culture in northern Mesopotamia.

Read more ....

Gorillas Losing Battle Against Loggers And Hunters In Central Africa

From Times Online:

Gorillas in Central Africa are in danger from illegal logging, mining and from hunters killing great apes for meat, says a new report from the United Nations and Interpol.

In 2002 it was estimated that only 10 per cent of gorillas would remain by 2030.

“We fear now that the gorillas may become extinct from most parts of their range in perhaps 15 years,” said Christian Nellemann, of the UN Environmental Programme.

Read more ....

New Species 'Live Without Oxygen'

One of the species has been named Spinoloricus Cinzia, after Dr Danovaro's wife

From The Telegraph:

Three species of creature, which are only a millimetre long and resemble jellyfish encased in shells, were found 2.2 miles (3.5km) underwater on the ocean floor, 124 miles (200km) off the coast of Crete, in an area with almost no oxygen.

The animals, named Loriciferans due to their protective layer, or lorica, were discovered by a team led by Roberto Danovaro from Marche Polytechnic University in Ancona, Italy.

Read more ....

How Carbon Dioxide In The Blood Could Be Responsible For Near-Death Experiences

Towards the light: People who have out-of-body experiences on the operating table may have high levels of carbon dioxide in their blood

From The Daily Mail:

Some experience an out-of-body floating sensation, others an intense feeling of joy and peace.

Now scientists believe they have explained what causes the near death experiences reported by thousands of people on the operating table.

A study of heart attack victims has found a link between out of body experiences and high levels of carbon dioxide in the blood.

Read more ....

Wonder Lust: Trinity Test Site

Making the pilgrimage to ground zero (Image: Joe Raedle/Getty)

From New Scientist:

AT 15 seconds to 5.30 am on 16 July 1945, the world's first nuclear explosion turned 4 hectares of sand into glass and signalled the start of the atomic age. It happened at the Trinity site in the Jornada del Muerto desert of southern New Mexico.

It's hard to imagine a more isolated, desolate spot. Yet the site, part of the White Sands missile range, is open two days each year to pilgrims to this "ground zero" of the nuclear arms race. Aside from a bus that runs between the blast site and a historic ranch house where the bomb's plutonium core was assembled, visitors have to fend for themselves.

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Robo-Suit Will Help Aging Japanese Farmers Pick Crops ith EaseW

Robotic Suit Aids Farmers A postgraduate student at the Tokyo Agriculture and Technology University models a motorized exoskeleton developed to help aging farmers endure the strain of hard labor. AFP

From Popular Science:

Harvesting the bounty of the earth is harder than it looks, especially you're over 65 years old -- as two-thirds of Japan's farmers are. For those whose joints ache more with every radish pulled out of the ground, Shigeki Toyama, a professor at Tokyo Agriculture and Technology (TAT) University, has developed a motorized exoskeleton designed to boost the wearer's strength by 62 percent.

Read more ....

Hewlett Packard Outlines Computer Memory Of The Future

Image: 17 memristors captured by an atomic force microscope

From The BBC:


The fundamental building blocks of all computing devices could be about to undergo a dramatic change that would allow faster, more efficient machines.

Researchers at computer firm Hewlett Packard (HP) have shown off working devices built using memristors - often described as electronics' missing link.

These tiny devices were proposed 40 years ago but only fabricated in 2008.

HP says it has now shown that they can be used to crunch data, meaning they could be used to build advanced chips.

That means they could begin to replace transistors - the tiny switches used to build today's chips.

Read more
....

Did A Comet Trigger A Mini Ice Age?

A sudden plunge of global temperatures 12,900 years ago may have been caused by a comet impact, a British researcher argues. Credit: U.S. Geological Survey

From Cosmos/AFP:

PARIS: A sudden plunge of global temperatures at the dawn of human civilisation may have been caused by a comet impact, a British researcher argues.

Known as 'the Younger Dryas', it has been also called the Big Freeze and the Last Blast of the Ice Age - but for researchers trying to understand the Earth's ancient climate, it's one of the big mysteries of the field.

Read more ....

Space Skydiver Suit Revealed



From Discovery News:

Austrian skydiver Felix Baumgartner wants to attempt a record-breaking free fall from 120,000 feet above the Earth. It's not the kind of jump a person can do with a conventional sky-diving suit and helmet. After all, Baumgartner will break the speed of sound during his fall. He will need life-support.

Read more
....

Periodic Discussions: It's Going To Take A Long Time For Element 117 To Make It Onto The Periodic Table. Why?

From Slate:

A team of Russian and American scientists announced today the creation of several atoms of the previously unknown element 117. The discovery of "ununseptium" will eventually fill a longtime gap on the periodic table, although that formal change may not happen for years. In June 2009, element 112 was designated as an official element, more than a decade after it was first created. Sam Kean explained why changing the periodic table requires the scientific equivalent of a Supreme Court decision. His column is reprinted below.

Read more ....

Scientists Explore Origins Of 'Supervolcanoes' On The Sea Floor: Ancient Goliaths Blamed For Multiple Mass Extinctions

JOIDES Resolution departing from Yokohama, Japan, on the Shatsky Rise expedition. (Credit: John Beck, IODP/TAMU)

From Science Daily:

ScienceDaily (Apr. 10, 2010) — "Supervolcanoes" have been blamed for multiple mass extinctions in Earth's history, but the cause of their massive eruptions is unknown.

Despite their global impact, the eruptions' origin and triggering mechanisms have remained unexplained. New data obtained during a recent Integrated Ocean Drilling Program (IODP) expedition in the Pacific Ocean may provide clues to unlocking this mystery.

Read more ....

Ancient Pre-Human Skeleton May Contain Shrunken Brain

The cranium of the newly identified species, Australopithecus sediba, was found at the Malapa site, South Africa. Credit: Photo by Brett Eloff courtesy of Lee Berger and the University of the Witwatersrand.

From Live Science:

A shrunken brain may potentially lie inside the fossil skull of a newfound candidate for the immediate ancestor to the human lineage, researchers now reveal.

This new species, dubbed Australopithecus sediba, was accidentally discovered in South Africa by the 9-year-old son of a scientist. Two members of this hominid were introduced to the world last week — a juvenile male and an adult female, who might have known each other in life and who could have met their demise by falling into the remains of the cave where they were discovered.

Read more ....

The 10 Best Mathematicians

Pythagoras, from a 1920s textbook. Photograph: © Blue Lantern Studio/Corbis

From The Guardian:

Alex Bellos selects the maths geniuses whose revolutionary discoveries changed our world.

Pythagoras (circa 570-495BC)

Vegetarian mystical leader and number-obsessive, he owes his standing as the most famous name in maths due to a theorem about right-angled triangles, although it now appears it probably predated him. He lived in a community where numbers were venerated as much for their spiritual qualities as for their mathematical ones. His elevation of numbers as the essence of the world made him the towering primogenitor of Greek mathematics, essentially the beginning of mathematics as we know it now. And, famously, he didn't eat beans.

Read more ....

Profile: Julian Assange, The Man Behind Wikileaks

Julian Assange

From Times Online:

They seek him here, they seek him there, but the founder of the whistleblowing website Wikileaks is as elusive as a modern-day pimpernel.

Julian Assange dreamt that one day the internet would streamline the leaking of state secrets. Last week his whistleblowers’ website posted its most explosive leak yet: a secret video shot by an American attack helicopter of Iraqi civilians and a Reuters photographer being mown down, apparently in cold blood.

Read more ....

Images Mark 20 Years Of Hubble Telescope

Hubble Telescope

From The Telegraph:

The most dramatic and significant images of the universe taken by the Hubble Space Telescope have been named to mark the iconic telescope's 20th anniversary in space.

In the two decades since its launch, the Hubble Space Telescope has transformed the way we see and understand our universe.

In pictures: 3D space pictures: stereo images of moons, galaxies and nebulae

Read more ....

New Super-Heavy Element Discovered That Points Towards 'Strange Materials Of The Future'

From The Daily Mail:

Physicists have discovered a new super-heavy element that had been labeled a nuclear 'missing link' by scientists.

The element 117 is roughly 40 per cent heavier than lead and has been given the temporary name ununseptium, which refers to its atomic number.

Researchers believe the element points towards a concoction of more massive and stable elements that could be used to create strange and unpredictable new materials.

Read more ....

First Footage From World's Deepest Volcanic Vents



From New Scientist:

At this depth, the water is hot enough to melt lead, and the pressure it exerts means that every square centimetre has to withstand the weight of five hefty men.

"It was like wandering across the surface of another world," says Bramley Murton, a geologist at the National Oceanographic Centre (NOC) in Southampton, UK, who piloted the Hy-Bis underwater vehicle around these deep volcanic vents and filmed them for the first time.

Read more ....

Happy 50th Birthday To The Search For Extraterrestrial Intelligence!

SETI's Allen Telescope Array via SETI Institute

From Popular Science:

Celebrating half a century of no aliens

Fifty years ago today, on April 8th, 1960, a Cornell astronomy professor named Frank Drake pointed a radio telescope at the star Tau Ceti in the hope of hearing broadcasts from extraterrestrial intelligence. Naturally, he didn't hear anything out of the ordinary. But with this experiment, Drake began the decades-long search for aliens, known as the Search for Extraterrestrial Intelligence (SETI), that celebrates its 50th anniversary today. Over the last half century, SETI has failed at its initial goal of contacting aliens, but succeeded mightily in bringing new attention to astronomy, helping to develop cloud computing, and inspiring generations of new scientists.

Read more ....

'World Needs A Barometer Of Life'

From The BBC:

The world needs a "barometer of life" to prevent ecosystems and species being lost forever, scientists have warned.

Existing schemes, they said, did not include enough species from groups such as fungi and invertebrates to provide a detailed picture of what is at risk.

Writing in the journal Science, the researchers said the barometer would increase the number of species being assessed from almost 48,000 to 160,000.

The data would help identify areas in need of urgent action, they added.

Read more ....

Thursday, April 1, 2010

CSN Editor On Vacation, Will Be Back Soon

Update: Taking Easter off with family. Will return on Monday, April 12.

Yup .... took a little vacation. Will be back soon.