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• 11:40, 25 April 2022 Physdemo talk contribs created page Spectral Tubes/Signs (Created page with "{{NewDemo|subject=Light and Optics|topic=Spectral Lines|file1=}} Neon gas filled signs are excited with a 5000v source. Students can observe the spectral "curves" obtained from the different neon gas signs. One sign says neon, another has the periodic table symbol for neon, Ne and a third sign is bent into the equation E=hn to remind students of the principle they are studying. '''Location: ''' * Spectral signs Ne and E=hn : Shelf L-1 * NEON Sign: Glassware Cabinet T-2...")