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Author Comment Last activity Moderation
jkenny23 "I found this resource regarding short/long wave UV fluorescence. Looks like beeswax is a common material that fluoresces with both long and short w..." | Read more » over 1 year ago
jkenny23 "Interesting, I wasn't aware LEDs as photodiodes were wavelength selective, but was aware of the general effect. Looks like your 2nd link was a copy..." | Read more » over 1 year ago