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Good citizens,
I was reading on the Photonics Newsletter today and scientists are using lasers to detect chemicals in boxes at over a 100 meters. Even inside walls detection is possible with lasers and at the end of the article it mentions using it for geological detection. Look here: http://www.photonicsonline.com/artic...ource=nl:33421 Long distance Raman Spectroscopy,this is great. Randy |
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