• Elting@piefed.socialEnglish
    7·
    22 hours ago

    The doppler effect you can hear when something loud passes you happens to light too. It would have to be aproaching very fast indeed however to make a red rose appear blue. (Like fast enough to fuse atoms in the atmosphere)

    • Kongar@lemmy.dbzer0.comEnglish
      2·
      22 hours ago

      Thanks! I just learned this - makes sense at fast speeds. Just never thought it was from anything other than space expanding :)