Word: daryoosh
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Dates: during 2005-2005
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FirstDefender uses lasers and a type of optical analysis known as Raman spectroscopy. "It shines a light on an object and looks at the scattered light coming back, which carries the optical signature of the material, whether it's a liquid or a solid," explains Ahura founder and president Daryoosh Vakhshoori. "You can read the substance as if it had a bar code, observing if the white powder you see is sugar, aspirin or something more dangerous...
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