• Aurenkin@sh.itjust.works
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    1 year ago

    The speed of light is different depending on the medium though isn’t it? So to change speed I would have thought some acceleration would have to be involved.

    I have no idea what I’m talking about though.

    • Neato@kbin.social
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      1 year ago

      It’s not. The wave front moves slower. Because when light moves through matter it’s getting absorbed and reradiated.