When a single pixel may be all you need:

http://www.sciam.com/article.cfm?chanID=sa003&articleID=0003FA95-AAB6-1526-AAB683414B7F0000&ref=rss
or/
http://tinyurl.com/kezzp

I hope you find this interesting too.

Perry.
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Perry Pellechia

Primary email: [EMAIL PROTECTED]
Alternate email: [EMAIL PROTECTED]
Home Page: http://homer.chem.sc.edu/perry
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