Posted: Jun 22, 2014 1:29 pm
This page is fun to visit. It presents the known emission spectra of the elements of the Periodic Table, arranged in Periodic Table order. User interface is a bit clunky, but it's still fun to visit.
Lifeboat for the rational mind :D
http://www.rationalskepticism.org/
http://www.rationalskepticism.org/viewtopic.php?p=2030318#p2030318