• FrederikNJS@lemm.ee
    link
    fedilink
    arrow-up
    0
    ·
    5 months ago

    Interestingly the watermelon (and other plants) don’t quite eat the sunlight, but the chlorophyll in the plant uses the sunlight to get enough energy to steal the carbon atoms from the CO2 in the air. So your water melon is literally made out of thin air!

    • Jarix@lemmy.world
      link
      fedilink
      arrow-up
      0
      ·
      5 months ago

      When you lose weight, it is literally breathed away out of your body into the air

      • state_electrician@discuss.tchncs.de
        link
        fedilink
        English
        arrow-up
        0
        ·
        5 months ago

        Is that true, though? Your body needs energy for various tasks and those have different mechanisms of spending the energy. Muscles, for example, move, which creates heat. But that heat is not simply breathed out.

        • cabb@lemmy.dbzer0.com
          link
          fedilink
          arrow-up
          0
          ·
          5 months ago

          Producing heat isn’t where the mass goes though - mass is conserved. You only lose mass to energy in a nuclear reaction.

            • cabb@lemmy.dbzer0.com
              link
              fedilink
              arrow-up
              0
              ·
              4 months ago

              I’m not sure what you mean by in there but yes, the heat would be transferred to the environment.

              E=m(c^2) describes how much energy is contained in matter. It’s useful for nuclear reactions, but your body isn’t a nuclear reactor and you aren’t consuming substantial quantities of radioactive isotopes, like uranium ore, that will decay on their own so it isn’t relevant here.

        • Enkrod@feddit.de
          link
          fedilink
          English
          arrow-up
          0
          ·
          5 months ago

          The heat is literally produced by oxidizing (burning) carbon that you then breathe out as carbondioxide.