• LordCrom@lemmy.world
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    21 days ago

    And remember, a photon of light does not experience time. Time only applies to mass. When a photon is emitted traveling at the speed of light, it is eventually absorbed by something, eglight from the sun hitting your eye. The photon of ligjt, from the photon POV is emitted and absorbed in the same instance.

    • MeThisGuy@feddit.nl
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      21 days ago

      and electrons in a DC wire don’t travel, but push?
      and in AC they go both ways?
      I dunno electro physics was never my strong suit…

      • Zink@programming.dev
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        21 days ago

        I think they do move, but it’s slower than you might think. The voltage / EMF / potential travels super fast on the same order of magnitude as the speed of light, but the net motion of the electrons in a DC current flow slower than WE can move.