All right math and science types, liberal arts boy needs your help. I have been reading several books by Brian Greene on string theory, quantom physics, theories of the universe, etc. And I am having trouble with the concept that a photon of light in a vacum will travel at the speed of light forever, without breaking down, slowing down or stopping; and that this is the ONLY thing of which this is true. Why is the same not true of radio waves/ the speed of sound?
I get that light doesn't necessarily exist "forever". And that atoms can absorb photons of the right energy and eject electrons (conserving energy, of course, as per the First Law of Thermodynamics), i.e. the photoelectric effect BUT WHY is light the only thing that behaves this way in a vacum?
I get that light doesn't necessarily exist "forever". And that atoms can absorb photons of the right energy and eject electrons (conserving energy, of course, as per the First Law of Thermodynamics), i.e. the photoelectric effect BUT WHY is light the only thing that behaves this way in a vacum?
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but then again, who am i to judge?? haha