The Planted Tank Forum - View Single Post - DIY PAR meter, Yeah you heard me
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post #44 of (permalink) Old 11-12-2010, 05:33 PM
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Join Date: Dec 2005
Location: Sacramento, CA
Posts: 20,304
Aha! A good photodiode and and some oxidized hydrogen, and you have the makings of a powerful thermonuclear device! (Let me double check my old college physics book to confirm that.)

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