Colors of the rainbow in a tube (1 Viewer)

[Haku]

can some one provide me picture of cathode rays at different gas pressures in the tube please, or just a black and white labeled pic is also much appreciated.

 

[香港!]

Can someone also show a pic of a Nuclear Fission Reactor w\ all the parts in it labelled plz.. i dunno which ones which lol

 

[spank_meh]

well how bout you ppl go to google images? gosh people these dayz...

 

[helper]

For cathodes
http://schools.cbe.ab.ca/b858/dept/sci/teacher/zubot/Phys30notes/investnurays/investnurays.htm