Monday, Dec 08th
Last update07:39:18 AM GMT
Family members and non-essential U.S. staff have been ordered to leave the U.S. embassies in Tunis and Khartoum because of security concerns following a wave of anti-American protests, the U.S. State Department said on Saturday.
Note: This is a breaking story. Updates will follow.
Radium in one sample of Marcellus shale wastewater, also called brine, that Pennsylvania officials collected in 2009 was 3,609 times more radioactive than a federal safety limit for drinking water. It was 300 times higher than a Nuclear Regulatory Commission limit for industrial discharges to water.
In a letter submitted Friday afternoon to internal investigators at the Nuclear Regulatory Commission, a whistleblower engineer within the agency accused regulators of deliberately covering up information relating to the vulnerability of U.S. nuclear power facilities that sit downstream from large dams and reservoirs.
The letter also accuses the agency of failing to act to correct these vulnerabilities despite being aware of the risks for years.
At least Paul Ryan adds some balance to the ticket: When Willard is prevaricating, Paul can pick up the mantle of flat-out lying; when Paul is dissembling, Willard can maintain his forked tongue.
A pioneering team from IBM in Zurich has published single-molecule images so detailed that the type of atomic bonds between their atoms can be discerned.
The same team took the first-ever single-molecule image in 2009 and more recently published images of a molecule shaped like the Olympic rings.
The new work opens up the prospect of studying imperfections in the "wonder material" graphene or plotting where electrons go during chemical reactions.
British researchers have determined that a little-studied chemical in the cannabis plant could lead to effective treatments for epilepsy, with few to no side effects.
The team at Britain’s University of Reading, working with GW Pharmaceuticals and Otsuka Pharmaceuticals, tested cannabidivarin, or CBDV, in rats and mice afflicted with six types of epilepsy and found it “strongly suppressed seizures” without causing the uncontrollable shaking and other side effects of existing anti-epilepsy drugs.
Sea ice in the Arctic has shrunk to its smallest extent ever recorded, smashing the previous record minimum and prompting warnings of accelerated climate change.
Satellite images show that the rapid summer melt has reduced the area of frozen sea to less than 3.5 million square kilometres this week – less than half the area typically occupied four decades ago.
Arctic sea ice cover has been shrinking since the 1970s when it averaged around 8m sq km a year, but such a dramatic collapse in ice cover in one year is highly unusual.
Two of nuclear power's greatest champions dealt the industry a heavy blow on Friday, with Japan deciding to phase out its plants and France confirming plans to cut its heavy reliance on the technology following concern over the Fukushima disaster.
Japan, which produced more than 10 percent of global nuclear power before it suffered last year's accident at Fukushima, joins Germany, Switzerland and Belgium in deciding to shut down nuclear plants and to spend money on renewable energy instead.
Scientists at CERN have smashed together various particles for the first time, moving closer to learning what was in the super-hot plasma wonderland that formed right after the primeval Big Bang, the European physics research centre said on Thursday.
The announcement followed another boost for physicists at CERN near Geneva with the effective endorsement by independent experts in a key journal of their claimed discovery of a new particle, the Higgs Boson.
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