Posted: Dec 18, 2016 3:44 pm
Having tried that search. I reckon the Wikipedia URL it came up with is as good aas any:
https://en.wikipedia.org/wiki/Electromagnetic_radiation
https://en.wikipedia.org/wiki/Electromagnetic_radiation
Lifeboat for the rational mind :D
http://www.rationalskepticism.org/
http://www.rationalskepticism.org/viewtopic.php?p=2504633#p2504633