U.S. Navy Needs Diesel Submarines

German 212 diesel submarine The American Enterprise Institute makes the case for Diesel Submarines. The US Navy should procure a fleet of diesel-powered subs. Not only are diesels cheaper than nuclear-powered subs, but they have the advantage of being better platforms for many of the tasks the Navy faces today. The list of actual and …

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26 Terabit per second transmitted using one laser over one fiber channel

Nature Photonics – 26 Tbit per second line-rate super-channel transmission utilizing all-optical fast Fourier transform processing There has been transmission of data at over 100 terabits per second but those involved up to 370 lasers. German scientists of Karlsruhe Institute of Technology have succeeded in encoding data at a rate of 26 terabits per second …

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Beam Powered Space Propulsion Work from NASA, DARPA and some other companies

NASA’s Ames Research Center has recently spent $2 million on a powerful microwave source to be used primarily for propulsion research. Kevin Parkin’s team is collaborating with Escape Dynamics in Broomfield, Colorado, which is likewise dedicated to developing microwave-based rockets. High-power microwave sources called gyrotrons have been developed for nuclear fusion research, and the gyrotron …

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George Monbiot describes the double standard against nuclear power

George Monbiot is a reporter and environmentalist at the UK Guardian. He describes his support for nuclear power and for a clean environment. He lists the double standards against nuclear power Double standard one: deaths and injuries Chinese coal mining alone kills as many people every week as the worst nuclear power accident in history …

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Fukushima reactors as of March 26

UPDATE AS OF 9:30 A.M. EDT, MARCH 26 Japanese scientists yesterday detected higher levels radioactive iodine in seawater at water outlets near the Fukushima Daiichi nuclear power plant. “Iodine 131 was detected at a level 1,250 times the national safety limit,” Hidehiko Nishiyama of the Nuclear and Industrial Safety Agency said during a news conference. …

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Superconducting pseudogap is a new state of matter

In this phase diagram common to many cuprate superconductors, the insulating phase typical of undoped cuprate compounds appears at the far left (black). Other phases appear with increased hole doping – the dome-shaped superconducting phase below Tc (blue), the mysterious pseudogap below T* (red), and a “normal metallic” phase (white). New evidence from studies of …

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More than 262 aftershocks over magnitude 5, over 49 over 6 and three larger than 7 in Japan

A record 262 aftershocks of magnitude 5 or greater were registered in the seven days following the magnitude 9.0 earthquake off northeastern Japan on March 11, Kyodo News quoted the Japan Meteorological Agency as saying Friday. There were three aftershocks of magnitude 7 or greater, including one magnitude 7.5 that occurred shortly afterwards, and 49 …

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Google 20% employee time going to help Japan quake victims and creating new web tools for disaster mitigation

On Friday the first day of the quake, Google’s offices in Tokyo’s Roppongi district contacted Google.org, their employer’s philanthropic arm, to suggest it should get involved in the emergency response, as it had after recent earthquakes in Haiti, Chile and New Zealand. Within an hour, and with aftershocks still rocking Tokyo, the Japan Person Finder …

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Poverty in Numbers: The Changing State of Global Poverty from 2005 to 2015 by the Brookings Institute

Official global poverty estimates are only rarely produced, and when they do appear, they are out of date by the time they are published. Thus, when world leaders met in September 2010 to assess progress toward reaching the Millennium Development Goal of halving global poverty, they had to rely on poverty data from 2005. By …

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