Posted by Jack Cain on Wednesday, November 06, 2002 at 8:43PM :
In Reply to: Off Topic, but sort of related posted by Sean on Wednesday, November 06, 2002 at 8:14PM :
a bit counter-intuitive but good absorbers of radiation are also good emitters.
That is one of the reasons that aluminum used in heat sinks is often dipped in nitric acid it pits the surface and turns it black and also makes it a more effective heat sink.
Follow Ups: