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Transform! Origami robots self-fold

Science A GoGo - Tue, 2010-06-29 04:10
Researchers have demonstrated a concept they call "origami robotics" using a single thin sheet composed of interconnected triangular sections that can transform itself into different shapes...
Categories: Science News

North Korean heir apparent elected to assembly: reports

Reuters - Tue, 2010-06-29 01:52
SEOUL (Reuters) - North Korean leader Kim Jong-il's son and handpicked heir has been elected to parliament but he will at best become a figurehead under a military-led collective leadership, news reports said on Tuesday quoting a source.

Categories: Science News

Bad weather stops some spill cleanup as Alex threatens

Reuters - Tue, 2010-06-29 01:29
HOUSTON (Reuters) - Bad weather halted some clean-up efforts from the Gulf of Mexico oil spill on Tuesday as high winds and waves from a strengthening storm threatened to hamper plans to capture more of the crude gushing from the largest spill in U.S. history.

Categories: Science News

General McChrystal to retire from U.S. Army: official

Reuters - Tue, 2010-06-29 01:26
WASHINGTON (Reuters) - General Stanley McChrystal, who President Barack Obama fired last week as the top U.S. and NATO commander in Afghanistan, has informed the U.S. Army he plans to retire, an official said on Monday.

Categories: Science News

Alex to become hurricane, delays oil spill efforts

Reuters - Tue, 2010-06-29 01:22
CAMPECHE, Mexico (Reuters) - Tropical Storm Alex was set to strengthen into a hurricane on Tuesday, delaying BP Plc's efforts to increase siphoning capacity at the gushing oil well in the Gulf of Mexico where some companies evacuated workers.

Categories: Science News

Evidence mounts against diabetes drug

Scientific American Online - Mon, 2010-06-28 23:19

By Heidi Ledford

Patients who take the controversial diabetes drug Avandia are more likely to have a stroke or heart failure, or die, than those who take a rival drug, a survey of more than 200,000 insurance records has revealed. [More]

Categories: Science News

General McChrystal to retire from U.S. Army: official

Reuters - Mon, 2010-06-28 23:08
WASHINGTON (Reuters) - General Stanley McChrystal, who President Barack Obama fired last week as the top U.S. and NATO commander in Afghanistan, has informed the U.S. Army he plans to retire, an official said on Monday.

Categories: Science News

BP's relief well moment of truth on collision course with Gulf storm season

Scientific American Online - Mon, 2010-06-28 22:47

As the first of the Deepwater relief wells sinks to within a few hundred meters of intersecting the leaking Macondo oil well deep below the Gulf of Mexico's seafloor, BP's moment of truth is coming. Unfortunately, so is tropical storm Alex and its 95 kilometer-per-hour winds. The National Weather Service's National Hurricane Center forecasts that Alex could become a hurricane on Tuesday, possibly delaying the drilling of relief wells generally seen as the best and last hope to plug the 9.5 million liters of crude gushing into the Gulf daily. [More]

Categories: Science News

How close are we to catastrophic climate change?

Scientific American Online - Mon, 2010-06-28 22:11

As you may have noticed, scientists remain convinced that humans are altering the global climate with an excess of greenhouse gas emissions--soot, methane and the ever-present carbon dioxide we pump out from our lungs and coal-burning power plants. The question is: how bad is said climate change going to get? [More]

Categories: Science News

U.S. arrests 10 for allegedly spying for Russia

Reuters - Mon, 2010-06-28 21:54
WASHINGTON (Reuters) - U.S. authorities said on Monday they have broken up a spy ring that carried out deep-cover work in the United States to recruit political sources and gather information for the Russian government.

Categories: Science News

Shifty Science: Programmable Matter Takes Shape with Self-Folding Origami Sheets

Scientific American Online - Mon, 2010-06-28 21:45

Researchers at Harvard University and the Massachusetts Institute of Technology (M.I.T.) have invented a real-life Transformer, a device that can fold itself into two shapes on command. The system is hardly ready to do battle with the Decepticons--the tiny contraption forms only relatively crude boat and airplane shapes--but the concept could one day produce chameleonlike objects that shift between any number of practical shapes at will. [More]

Categories: Science News

Feingold says won't vote to advance Wall Street bill

Reuters - Mon, 2010-06-28 21:27
WASHINGTON (Reuters) - Senator Russell Feingold said on Monday that he will not vote to advance the financial-reform bill, denying his fellow Democrats the 60th vote they need to clear a final hurdle in Congress.

Categories: Science News

Genome Sequencing for the Rest of Us

Scientific American Online - Mon, 2010-06-28 21:20

We all carry our DNA around with us--in every cell of our bodies--but some biotech trailblazers are toting their genomes with them, too. In a recent talk Jay Flatley, president and CEO of sequencing giant Illumina, recalled being asked by his doctor to get a certain genetic test. But Flatley was able to pull up his full genome on his iPad then and there instead of sending a spit sample off to the lab. [More]

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New York Fed probes Wall Street exposure to BP: sources

Reuters - Mon, 2010-06-28 20:59
NEW YORK (Reuters) - The Federal Reserve Bank of New York has been probing major financial firms' exposure to BP Plc to ensure that if the oil giant buckles under the costs of the Gulf oil spill, it won't put Wall Street or the global financial system at risk, according to two sources familiar with the matter.

Categories: Science News

Health Legacy of Uranium Mining Lingers 30 Years Later

Scientific American Online - Mon, 2010-06-28 20:00

On a dark night in 1967, Reed Hayes stepped out onto the gangway over the uranium thickener tank. He was replacing a light bulb during the graveyard shift at the now-demolished Atlas uranium mill in Moab, Utah. He stumbled, reached desperately for the safety line, and grabbed nothing but air. A worker on the previous shift forgot to secure it.

"All of a sudden I go plop!" Hayes recalled. "I go clear to the bottom. I'm in nitric acid, sulfuric acid, uranium yellowcake, and caustic soda. If I hadn't been a good swimmer, I probably would not have gotten out of there."

Categories: Science News

Self-folding origami sheet transforms into two different shapes

Scientific American Online - Mon, 2010-06-28 18:36
Foldable sheets are one route to programmable matter, objects whose properties change on demand
Categories: Science News

Too Much Salt Eaten by Almost Everyone

Scientific American Online - Mon, 2010-06-28 18:12

Even if you have a light hand with the salt shaker, you probably get lots of sodium in processed or restaurant meals. But sodium can contribute to high blood pressure, and increases the risk for heart disease and failure, stroke, and kidney disease. So how many of us are limiting our sodium intake to recommended levels--which scientists say could reduce new cases of coronary heart disease by 60-to-120 thousand per year.

Researchers at the Centers for Disease Control analyzed data from the National Health and Nutrition Examination Survey from 2005/2006, the most recent years available. Nearly 4,000 adults over 20-years-old completed a physical, had their blood pressure taken and answered a survey of what they’d eaten over the past 24. This food survey was taken again about a week later.

Categories: Science News

Supreme Court rules against Christian group that bars gays

Reuters - Mon, 2010-06-28 18:06
WASHINGTON (Reuters) - A university can legally deny recognition to a Christian student group that bars gays and nonbelievers, the U.S. Supreme Court ruled on Monday in a case that pitted anti-discrimination principles against religious freedom.

Categories: Science News

Can Stored Carbon Dioxide Leak?

Scientific American Online - Mon, 2010-06-28 18:00

Seepage of carbon dioxide from long-term carbon capture and storage projects may lead to delayed global warming unless the gas can be tightly controlled, according to a new study.

Unless the seepage rate of sequestered carbon dioxide can be held to 1 percent every 1,000 years, overall temperature rise could still reach dangerous levels that cause sea level rise and ocean acidification , concludes the research published yesterday in Nature Geoscience .

Categories: Science News

U.S.: Cheonan sinking was not international terrorism

Reuters - Mon, 2010-06-28 17:52
WASHINGTON (Reuters) - The sinking of a South Korea warship widely blamed on North Korea does not by itself justify putting Pyongyang back on a U.S. terrorism blacklist, the U.S. State Department said on Monday.

Categories: Science News
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