Comment on The sun is a deadly laser...

• Tar_alcaran@sh.itjust.works ⁨9⁩ ⁨hours⁩ ago

  I can’t really find a good number for how cold you can get and not die, so let’s say 20 degrees. That gives 16 degrees.

  Meat has a specific heat of about 3.5kJ per kilo per degree, so say you weigh 70kg, that’s about 4 million joules to lose before you die.

  At 650 joules per second, you’ve got slightly over 10 minutes.

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  • bobo@lemmy.ml ⁨5⁩ ⁨hours⁩ ago

    Meat has a specific heat of about 3.5kJ per kilo per degree, so say you weigh 70kg, that’s about 4 million joules to lose before you die.

    At 650 joules per second, you’ve got slightly over 10 minutes.

    My man, first of all

    4,000,000/650/60=102.57 minutes

    And that’s with your math based on an imaginary object. A body is going to lose heat far more slowly.

    Also, you forgot one important aspect, if you’re getting bathed by the sun and spinning, you’re constantly getting heated up.

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  • Zwiebel@feddit.org ⁨8⁩ ⁨hours⁩ ago

    Your skin isn’t at core temp tho, so the loss rate should be lower I think

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    • Tar_alcaran@sh.itjust.works ⁨6⁩ ⁨hours⁩ ago

      At that point, you’ll have to calculate the heat transport of the human body, and answer questions like “how long can a person live with frozen skin” and other fun questions I’m not equipped to answer.

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