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9/30/03; 2:49:18 AM

p e r i o d i c
a table of the elements


 Friday, November 1, 2002


You can never have enough sodium spectra, as indicated by the continuing search engine referers. This image, taken with a Nikon 990 hand-held to the eyepiece of a Vreeland emission spectroscope, shows the doublet nature of the sodium D line:


  12:41:58 PM   comments