Umm - thinks - is it possible to radiate in one direction only, or only in a few? Or is 'radiate in all directions' an absolute tautology, in all circumstances? Answer on one side of the interweb only...
"Isotropic" is a great word, if you're just starting to build your scientific vocabulary. It means something is the same in all directions. If there is more in one direction than others, it is "anisotropic." If you're looking from a distance, the way we look at stars, radiation is isotropic. But if we were close enough, there might be enough anisotropy to matter, like with the grill example.
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Date: 2006-07-07 01:42 am (UTC)