China deploys secure computer operating system

China has installed a secure operating system known as "Kylin" on government and military computers designed to be impenetrable to US military and intelligence agencies, The Washington Times reported on Tuesday.

dateMay 12, 2009 in Software
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LED's efficiency exceeds 100%

(PhysOrg.com) -- For the first time, researchers have demonstrated that an LED can emit more optical power than the electrical power it consumes. Although scientifically intriguing, the results won’t ...

dateMar 05, 2012 in General Physics report
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New trigonometry is a sign of the times

Mathematics students have cause to celebrate. A University of New South Wales academic, Dr Norman Wildberger, has rewritten the arcane rules of trigonometry and eliminated sines, cosines and tangents from the trigonometric ...

dateSep 16, 2005 in
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