Challenge for the Techwhiz / LED experimenter - Field of Beams

zink(6a)July 26, 2005

If we could find out what two wavelengths of light these NSF researchers used, it should be possible to buy the appropriate LEDs, shine them through polarized sunglass lenses, and get a reading on the nutritional quality of our hobby plants.

http://www.nsf.gov/news/news_summ.jsp?cntn_id=104301&org=NSF&from=news

Any takers?

Zink

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