Esteban was right!

[Seden]

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