Androcles wrote: "C.Felis" <Flea@unspammmed.com> wrote in message news:5gv53kF3i3ka5U1@mid.individual.net... : Androcles wrote: : "T.M. Sommers" <tms@nj.net> wrote in message : news:46aa1441$0$25604$470ef3ce@news.pa.net... : : Androcles wrote: : : "Randy Poe" <poespam-trap@yahoo.com> wrote in message : : news:1185544758.961732.195970@j4g2000prf.googlegroups.com

Androcles wrote: "T.M. Sommers" <tms@nj.net> wrote in message news:46aa1441$0$25604$470ef3ce@news.pa.net... : Androcles wrote: : "Randy Poe" <poespam-trap@yahoo.com> wrote in message : news:1185544758.961732.195970@j4g2000prf.googlegroups.com... : : : : And so the temperature of a He-Ne laser beam is...? : : : It's colour. : http://en.wikipedia.org/wiki/Color_temperature

astrobot1 wrote: How do diamonds get their color? I know it's because of impurities, but what is the mechanism behind it? Is it similar to gases, where electrons are are jumping from a higher state to a lower state. Or is it because a standing wave of a particular color can be sustained between two nuclei, which act as anodes? google search, http://www.google.com/search?num