• 🐋 Color 🔱 ♀@lemm.ee
    link
    fedilink
    English
    arrow-up
    222
    ·
    23 hours ago

    30°C is 303 Kelvin. Half of that is 151 Kelvin, which translates into a fairly mild -122°C!

    Takes out hockey stick

      • mipadaitu@lemmy.world
        link
        fedilink
        English
        arrow-up
        2
        ·
        5 hours ago

        That’s one of the ways proposed for terraforming Venus. Put in a sun shield to freeze the planet, let the CO2 snow down, then process the CO2 into something that can sequester it away so it doesn’t just go back into the atmosphere after removing the sun shield.

        Of course none of that is technically possible right now, but it’s a lot easier on a planet that has no (known) life to destroy while working through the process.

    • Eiri@lemmy.ca
      link
      fedilink
      English
      arrow-up
      7
      ·
      15 hours ago

      Wait, does it? Are joules in thermal energy per kelvin a purely linear relationship?

      • Verat@sh.itjust.works
        link
        fedilink
        English
        arrow-up
        10
        ·
        edit-2
        13 hours ago

        For the most part, it varies by material and state of matter, but assuming the chemical composition doesnt change and no material changes phase, then it is pretty close to linear in most materials.

        • PmMeFrogMemes@lemmy.world
          link
          fedilink
          English
          arrow-up
          2
          ·
          2 hours ago

          hmm but there will surely be a lot of phase changes with a drop in energy so substantial. we need our top scientists on this asap

      • TonyTonyChopper@mander.xyz
        link
        fedilink
        English
        arrow-up
        7
        ·
        edit-2
        5 hours ago

        Fun fact: gas pressure changes linearly with temperature. If you make one of these plots at mild conditions you can extrapolate the line down to zero pressure and measure where absolute zero temperature is