Topic: Mechanical Engineering
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How dangerous is nuclear power? Three lessons from Japan.
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In Pictures: Hurricane Katrina: 5 years later
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In Pictures: Nuclear power around the world
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Photos of the Day: Photos of the Day 01/08
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In Pictures: Fighting continues in Afghanistan
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GE defends reactors in Japan nuclear crisis
The Japan nuclear crisis has brought scrutiny on GE, but the world's biggest nuclear-equipment supplier has maintained that its containment vessel design is reliable.
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Nuclear power report: 14 'near misses' at US plants due to 'lax oversight'
The Nuclear Regulatory Commission failed to resolve known safety problems, leading to 14 'near-misses' in US nuclear power plants in 2009 and 2010, according to a new report from a nuclear watchdog group.
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Japan crisis: Nuclear agency joins France in raising danger assessment
Japan’s nuclear agency raised its assessment of the nuclear crisis at the Fukushima Daiichi Nuclear Power Station from a level 4 to a level 5 on a 7-level international scale for nuclear accidents, matching an earlier assessment by France.
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Japan nuclear crisis: why the plume traveling to US poses little threat
Scientists point to several factors. On Thursday, the Japan nuclear crisis took a hopeful turn as engineers installed a cable to connect the Fukushima I nuclear power plant to the utility grid.
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Japan nears key fix for nuclear plant, but could it come too late?
A top nuclear regulatory official testified Wednesday that Japan's nuclear plant might already be too dangerous to allow repairs, even though external power could soon be available to run crucial water pumps.
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Meltdown 101: What are spent-fuel pools and why are they a threat?
Spent-fuel pools are shielded only by the buildings at Japan's Fukushimi I nuclear power plant, and three have now been damaged by explosions. Low-level radiation leaking from the pools could dramatically worsen if the water levels drop low enough for spent rods to burn.
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New nuclear plants may have withstood the Japan earthquake
The 9.0 Japan earthquake was dire but the current meltdown might have been avoided by new advances in nuclear plant technology.
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Radiation exposure: How big is the threat in Japan?
Radiation exposure: Adding to the monumental losses after a Japanese earthquake and tsunami, problems at four nuclear reactors have residents near and far concerned about radiation exposure.
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Japanese nuclear reactor update: Amid signs of progress, new problems
Scientists warn of risks from spent-fuel cooling pools and plutonium-rich, mixed-oxide fuel inside one nuclear reactor, even as the No. 1 and No. 3 reactors appear to be coming under control.
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Japan's nuclear crisis and Chernobyl: key differences
Japan's nuclear crisis is spawning concerns about 'another Chernobyl,' but a number of American and European scientists are cautiously taking the edge off the worst fears.
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Japan nuclear plant in state of emergency, as cooling power runs low
A nuclear plant in Japan is said to declare a state of emergency, as backup power used to cool three reactors runs low. Help is on the way. 'It's a dicey situation,' says nuclear specialist in US.
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8.9 earthquake: Could Japan's nuclear reactors melt down?
8.9 earthquake: There have been no reports of radiation leaks from any of Japan's nuclear plants in the wake of the devastating earthquake. But two reactors are in danger of core melt, say experts.
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Hybrid cars? OK. All-electric Tesla? An eco-thriller!
Hybrid cars still hold onto the combustion past, but the Tesla shows how all-electric cars can be a sporty and eco-friendly alternative.
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Nuclear power to remain in Germany's energy equation
Chancellor Angela Merkel's decision to rely on nuclear power longer than planned has significant opposition – but the alternative is more reliance on Russian gas.
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Nuclear power a viable competitor in US energy market, study finds
High costs of building nuclear power plants may put the industry at a disadvantage to fossil-fuel-burning energy producers, says a study from MIT. But reprocessing spent nuclear fuel, a controversial practice, won't be necessary, it finds.
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In Pictures: Hurricane Katrina: 5 years later
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Global warming heats up a nuclear energy renaissance
Global warming and the BP oil spill have helped rehabilitate nuclear energy in the eyes of the public – and some environmentalists.
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Why Obama is putting so much stock in battery technology
President Obama on Thursday made his fourth visit to a battery manufacturer since taking office. He's pouring money and political attention into an industry that's playing catch-up – but that is vital to the future health of the domestic auto industry.
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iPhone Helps Researchers Build Better Nuclear Power Plants
New nuclear power plants can be built faster thanks to new simulation tools on the iPhone and iPad.
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South Korea pushes to recycle nuclear power plant fuel
As a growing nuclear power plant builder and exporter, South Korea wants to reprocess nuclear fuel. That's counter to a US deal.
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In Pictures: Nuclear power around the world
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Nuclear waste storage in limbo as Obama axes Yucca Mountain funds
Funding for the nuclear waste repository at Nevada's Yucca Mountain was eliminated in the president's budget proposal. Planning begins anew for long-term storage even as Obama urges a nuclear-power expansion.
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Photos of the Day: Photos of the Day 01/08
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In Pictures: Fighting continues in Afghanistan
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Homeless nuclear waste
Some 60,000 metric tons of radioactive waste is stored at nuclear power plants across the country, awaiting federal action that’s already a decade late.
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