Nov 18, 2008 | 7
It sounds like something a villain might construct in a James Bond film: a laser, trained on a thin gold target, that churns out antimatter to annihilate ordinary matter. But scientists at Lawrence Livermore National Laboratory have announced that they made just such a device, from which they were able to detect the production of more than a million positrons, the antimatter particle counterpart to electrons. (By this detection they infer the presence of many times more positrons, in the realm of 100 billion particles.)
Livermore high-energy physicist Hui Chen [pictured at left] and her colleagues used a modified electron detector to pick up the presence of positrons, which quickly destroy electrons (and themselves), radiating energy in the form of gamma-ray photons. (Electrons and positrons have the same mass but opposite charge and so are detectable by similar means.)
Jul 15, 2008 | 3
The Oxfordshire band known for taking digital risks has done it again.
Last October Radiohead released their album In Rainbows as a digital download with a pay-whatever-you-want price tag.
Now, they’ve published the video to their song House of Cards, again online, but this time the kicker is that their video, which involved all the parts of traditional filmmaking, was made without any cameras or lights.
They shot the entire thing with lasers. Computers constructed the resulting 3D moving images of pinpoints and wide colorful landscapes. (Watch video below.)
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The Dow Chemical Company is the leading producer of polyalkylene glycols (PAGs) used in synthetic fluids and lubricants where petroleum,
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Conventional washing machines cause excessive damage and wrinkling to clothes primarily during the water removal step. With the introduc
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