- #1
rhenretta
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First off... woo a physics forum. It's been a while since I have posted in a forum, but I couldn't resist a physics forum :)
I just finished Richard Feynman's QED: The strange theory of light and matter. It brought up many questions, obviously, but the one I am currently trying to figure out is the seemingly paradoxical ideas that:
a) light spreads out and..
b) photons have a tendency to attract to the same point in S/T and same type (the basis of a laser)
a) seems obvious (a laser pointed at a distant target will be bigger than a laser pointed at a close target). b) on the other hand doesn't seem to actually play out. Do I misunderstand something here?
I just finished Richard Feynman's QED: The strange theory of light and matter. It brought up many questions, obviously, but the one I am currently trying to figure out is the seemingly paradoxical ideas that:
a) light spreads out and..
b) photons have a tendency to attract to the same point in S/T and same type (the basis of a laser)
a) seems obvious (a laser pointed at a distant target will be bigger than a laser pointed at a close target). b) on the other hand doesn't seem to actually play out. Do I misunderstand something here?
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