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Adrogans

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Posts posted by Adrogans

  1. I never understood how gravitational redshift works for an electromagnetic wave leaving the source of gravity. I don't see how the frequency of the wave can be changed by space-time warping. If the "path" is what changes, how can the wave that's travelling over the path be changed too? I could see it affecting gravitational waves, because those are ripples IN spacetime, but I don't get how it works for electromagnetic waves.

     

    Thanks

  2. If I understand correctly, sound waves are a part of electromagnetic radiation, and all electromagnetic radiation goes at the same speed (speed of light), right? So then I was wondering: how is it that the speed of sound is slower than the speed of light? Is it because the sound waves oscillate more, and thus the "stream" of photons make less forward movement than the light waves, which oscillate less? This has been perplexing me for a while now, and any help would be appreciated.

     

    Thanks in advance.

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