cereal2

  • egg1918 [she/her]
    ·
    5 months ago

    I wonder how much surface area of skin a person would need to sustain themselves through photosynthesis (assuming the skin can photosynthesize).

    • HotAtForty [he/him]
      ·
      5 months ago

      Some very rough back of the envelope calculations with major engineering math (eg consider the human to be a cylinder and efficiency is 100%, even overnight and ignoring the fact half of you is not facing the sun at all)

      https://worldbuilding.stackexchange.com/posts/38400/revisions

      12x human surface area is a very generous lower bound

      • egg1918 [she/her]
        ·
        5 months ago

        Lmao fantastic, this is exactly what I was looking for, thank you!

        I'm trying to picture what that abomination would look like. We'd need like giant leaf wings basically.