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20-February-08, 02:41 PM
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| News Hound  Join Date: Aug 2004 Location: Floating among Data streams, waiting for the right moment
Posts: 44,023
  |  Slashdot // NIST Working on "Deathalyzer" coondoggie writes to mention that a new optical technique for sensing small amounts of molecules in a persons breath has been developed by a researcher for the National Institute of Standards and Technology. The goal is to create a fast, low-cost method for detecting disease. "In this approach, NIST researchers analyze human breath with 'frequency combs,' which are generated by a laser specially designed to produce a series of very short, equally spaced pulses of light. Each pulse may be only a few million billionths of a second long. The laser generates light as a series of very narrow frequency peaks equally spaced, like the teeth of a comb, across a broad spectrum." Read more of this story at Slashdot. More... |
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