• yjr4df0708@lemmy.ml
    ·
    1 month ago

    assuming you're stationary and a rose is moving directly towards you, how fast would it have to be going to blueshift into looking blue?

    what would happen on impact?

    • ☆ Yσɠƚԋσʂ ☆@lemmy.ml
      ·
      1 month ago

      It would have to be moving at relativistic speeds, and given that F = mv² the velocity is the dominant factor when it comes to force. So, you'd probably get vaporized.

      • BB84@mander.xyz
        ·
        1 month ago

        That is definitely not a correct expression for force. It doesn’t even have unit of force. Do better. smh

    • BB84@mander.xyz
      ·
      1 month ago

      See https://mander.xyz/post/17123445 and in particular https://lemmy.blahaj.zone/comment/10334166.