Guest guest Posted December 30, 2007 Report Share Posted December 30, 2007 If you really like looking at light, this is a fancier version of the spectroscope: http://www.sargentwelch.com/product.asp_Q_pn_E_WL3820S%5FEA_A_Spectrometer%2C+Pr\ oject+Star_E_ It also costs more. Downside is that it doesn't readily fit into a large pocket. Sometimes I take the spectroscope (the device used in the previous post) out and all of my geeky friends and I can go out and tell the difference between mercury and sodium street lights. Quote Link to comment Share on other sites More sharing options...
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