Science & TechnologyS


Cult

Mystery cult's temple unearthed in northern Iraq

A temple built by followers of Mithraism, a mystery cult that flourished throughout the Roman Empire from the second to third centuries A.D., has been discovered in Iraq's northern Duhok province.

The temple, which consists of three parts, lies in the Badri Mountains in eastern Duhok, and includes a place for prayer facing the sun, the province's antiquities director, Hassan Ahmed Qassim, said in a statement to the website of President Jalal Talabani's Patriotic Union of Kurdistan party.

Info

QuikScat Finds Tempests Brewing In 'Ordinary' Storms

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© NOAAQuikScat image of a mature North Atlantic extratropical cyclone from December 1, 2004. The color bar in the upper right indicates wind speed in knots. The storm’s hurricane-force winds, located to the south of the center of the low pressure system, are depicted as red wind barbs.
Satellite, Now Entering Its Second Decade, Has Revolutionized Marine Weather Forecasts.

"June is busting out all over," as the song says, and with it, U.S. residents along the Atlantic and Gulf coasts begin to gaze warily toward the ocean, aware that the hurricane season is revving up. In the decade since NASA's QuikScat satellite and its SeaWinds scatterometer launched in June 1999, the satellite has measured the wind speed and wind direction of these powerful storms, providing data that are increasingly used by the National Oceanic and Atmospheric Administration's (NOAA) National Hurricane Center and other world forecasting agencies. The data help scientists detect these storms, understand their wind fields, estimate their intensity and track their movement.

Saturn

Mars Rover Yielding New Clues While Lodged in Martian Soil

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© NASA/JPL-Caltech/Cornell University The soft soil exposed when wheels of NASA's Mars Exploration Rover Spirit dug into a patch of ground dubbed "Troy" exhibit variations in hue visible in this image, in which the colors have been stretched to emphasize the differences.

Spirit used its panoramic camera during the 1,892nd Martian day, or sol, of the rover's mission on Mars (April 29, 2009) to take the three images combined into this composite image. The three images were taken through filters centered at wavelengths of 750 nanometers, 530 nanometers and 430 nanometers. Spirit had become embedded at Troy by about a week later.

The two rocks near the upper right corner of this view are each about 10 centimeters (4 inches) long and 2 to 3 centimeters (1 inch) wide.
Pasadena, Calif. -- NASA's Mars rover Spirit, lodged in Martian soil that is causing traction trouble, is taking advantage of the situation by learning more about the Red Planet's environmental history.

In April, Spirit entered an area composed of three or more layers of soil with differing pastel hues hiding beneath a darker sand blanket. Scientists dubbed the site "Troy." Spirit's rotating wheels dug themselves more than hub deep at the site. The rover team has spent weeks studying Spirit's situation and preparing a simulation of this Martian driving dilemma to test escape maneuvers using an engineering test rover at NASA's Jet Propulsion Laboratory in Pasadena, Calif.

Play

Dinosaurs actually slimmer than we thought

American researchers say they have uncovered a mathematical mistake made by the dinosaur boffinry community, meaning that the weight of live dinos has long been massively overestimated. In a development with devastating consequences for various much-fancied works of fiction, it now appears that in fact the dinosaurs were significantly slenderer than had been thought.

"Paleontologists have for 25 years used a published statistical model to estimate body weight of giant dinosaurs. By re-examining data in the original reference sample, we show that the statistical model is seriously flawed," says Gary Packard of Colorado State University.

According to Packard and his fellow dino-heft experts, the Apatosaurus louisae, for instance - one of the largest of the dinos - was actually far more svelte than had been thought, its weight having been overestimated by no less than 20 tonnes. The Giraffatitan (aka Brachiosaurus) was actually 16 tonnes less portly than formerly estimated.

Powertool

In Bedrock, Clean Energy and Quake Fears

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© Jim Wilson/The New York TimesA huge geothermal project north of San Francisco has raised fears of earthquakes
BASEL, Switzerland - Markus O. Häring, a former oilman, was a hero in this city of medieval cathedrals and intense environmental passion three years ago, all because he had drilled a hole three miles deep near the corner of Neuhaus Street and Shafer Lane.

He was prospecting for a vast source of clean, renewable energy that seemed straight out of a Jules Verne novel: the heat simmering within the earth's bedrock

All seemed to be going well - until Dec. 8, 2006, when the project set off an earthquake, shaking and damaging buildings and terrifying many in a city that, as every schoolchild here learns, had been devastated exactly 650 years before by a quake that sent two steeples of the Münster Cathedral tumbling into the Rhine.

Hastily shut down, Mr. Häring's project was soon forgotten by nearly everyone outside Switzerland. As early as this week, though, an American start-up company, AltaRock Energy, will begin using nearly the same method to drill deep into ground laced with fault lines in an area two hours' drive north of San Francisco.

Residents of the region, which straddles Lake and Sonoma Counties, have already been protesting swarms of smaller earthquakes set off by a less geologically invasive set of energy projects there. AltaRock officials said that they chose the spot in part because the history of mostly small quakes reassured them that the risks were limited.

Like the effort in Basel, the new project will tap geothermal energy by fracturing hard rock more than two miles deep to extract its heat. AltaRock, founded by Susan Petty, a veteran geothermal researcher, has secured more than $36 million from the Energy Department, several large venture-capital firms, including Kleiner Perkins Caufield & Byers, and Google. AltaRock maintains that it will steer clear of large faults and that it can operate safely.

But in a report on seismic impact that AltaRock was required to file, the company failed to mention that the Basel program was shut down because of the earthquake it caused. AltaRock claimed it was uncertain that the project had caused the quake, even though Swiss government seismologists and officials on the Basel project agreed that it did. Nor did AltaRock mention the thousands of smaller earthquakes induced by the Basel project that continued for months after it shut down.

The California project is the first of dozens that could be operating in the United States in the next several years, driven by a push to cut emissions of heat-trapping gases and the Obama administration's support for renewable energy.

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Artificial noise saves energy

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© Fraunhofer-Gesellschaft
Against the background of climate change, how can xDSL systems function more energy-efficiently and cost-effectively? Scientists are providing a solution combining existing methods which network providers could implement immediately.

Evil Rays

Mini-beamer in a cell phone or PDA

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© FraunhoferLooking at photos on a cell phone display can be somewhat arduous. A new mini-beamer will make it easier. The beamer is so small that it can be integrated in a cell phone or a PDA. As it does not need an extra light source it also conserves the battery.
A summer barbecue by the lake - as the sausages sizzle on the grill some of the party would like to watch the soccer on TV. Today, a choice has to be made whether to stay by the lake or watch the match on a big public screen or the TV set at home. In future, barbecue enthusiasts and football fans will be able to enjoy both at the same time. Cellphone TV is coming closer and with an innovative mini beamer it will be possible to create a public viewing event on a small scale - for example on a white bathing towel by the side of a lake.

Control Panel

First acoustic metamaterial 'superlens' created by U. of I. researchers

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© L. Brian Stauffer A team of Illinois researchers led by Nicholas X. Fang, left, a professor of mechanical science and engineering, have created the world's first acoustic "superlens." Doctoral student Shu Zhang holding the lens and Leilei Yin, a microscopist at Beckman Institute, were co-authors.
Champaign, Ill. - A team of researchers at the University of Illinois has created the world's first acoustic "superlens," an innovation that could have practical implications for high-resolution ultrasound imaging, non-destructive structural testing of buildings and bridges, and novel underwater stealth technology.

The team, led by Nicholas X. Fang, a professor of mechanical science and engineering at Illinois, successfully focused ultrasound waves through a flat metamaterial lens on a spot roughly half the width of a wavelength at 60.5 kHz using a network of fluid-filled Helmholtz resonators.

Magnify

CSHL scientists harness logic of 'Sudoku' math puzzle to vastly enhance genome-sequencing capability

Cold Spring Harbor, N.Y. - A math-based game that has taken the world by storm with its ability to delight and puzzle may now be poised to revolutionize the fast-changing world of genome sequencing and the field of medical genetics, suggests a new report by a team of scientists at Cold Spring Harbor Laboratory (CSHL). The report will be published as the cover story in the July 1st issue of the journal Genome Research.

Combining a 2,000-year-old Chinese math theorem with concepts from cryptology, the CSHL scientists have devised "DNA Sudoku." The strategy allows tens of thousands of DNA samples to be combined, and their sequences - the order in which the letters of the DNA alphabet (A, T, G, and C) line up in the genome - to be determined all at once.

Saturn

Saturn moon may harbour life-giving ocean

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This 2006 NASA Cassini space probe mosaic image shows Saturn's moon Enceladus.
Huge geysers on Saturn's moon Enceladus may be fed by a salty sea below its surface, boosting the odds of extraterrestrial life in our own Solar System, according to a study released Wednesday.

Researchers in Europe detected salt particles in the volcanic vapour-and-ice jets that shoot hundreds of kilometres (miles) into space, the strongest evidence to date of a liquid ocean under the moon's icy crust.

Scientists already knew that tiny Enceladus, only 500 kilometers across, had two of the three essential ingredients for the emergence of life.