• chickenf622@sh.itjust.works
    link
    fedilink
    English
    arrow-up
    68
    ·
    2 days ago

    Is the cross section of a cone not a circle, or semi circle in this case since we only see part of the “cone”?

    • mushroommunk@lemmy.today
      link
      fedilink
      English
      arrow-up
      39
      arrow-down
      1
      ·
      2 days ago

      This. We don’t as people define a rainbow as the path of light or anything like that. We define a rainbow as a circle of colors in the sky. That’s how language works.

    • irish_link@lemmy.world
      link
      fedilink
      English
      arrow-up
      12
      arrow-down
      1
      ·
      2 days ago

      Right, your point is taken but the point is more to explain the full portion of the rainbow. Not just the section you see.

      • FishFace@piefed.social
        link
        fedilink
        English
        arrow-up
        9
        ·
        2 days ago

        Every person sees a rainbow in a different location because rainbows are an optical phenomenon not a real object - in that sense rainbows are occupying the entire space, not just a cone even. The expansion is dumb.