• ZMoney@lemmy.world
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    4 months ago

    A schwarschild radius of 0.5 meters corresponds to about 56 Earth masses. So Richard must have accreted a bunch of mass before he collapsed.

    • KubeRoot@discuss.tchncs.de
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      4 months ago

      Or maybe he accreted the mass after collapsing?

      Alternatively, maybe that’s just the weight of his massive ego?

    • Holzkohlen@feddit.de
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      4 months ago

      Your mom is so fat, were she to collapse into a black hole her schwarzchild radius would be 0.5 meters. Does not quite roll of the tongue, does it?

    • pantyhosewimp@lemmynsfw.com
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      4 months ago

      Since you know the math, how long before it evaporated? Also, at what distance would an object feel 1G of acceleration?

      • sinkingship@mander.xyz
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        4 months ago

        Not OP. What would evaporate?

        I think we don’t know anymore what’s going on with Richard. I believe he would consume Earth almost instantly, including all satellites and maybe the moon.

        Didn’t do the math myself, but internet says 1 G would be at about 48 km radius.

        • TauZero@mander.xyz
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          4 months ago

          For an object heavier than the Earth, 1g radius will be greater than the radius of Earth. For 56 Earth masses that’s sqrt(56) times bigger = 48000km.

          A 56 Earth mass black hole will take 5.5e55 years to evaporate according to this calculator. A 100kg black hole (more close to what Richard used to be) is much smaller than the nucleus of an atom and will evaporate in 0.05 nanoseconds.

          Curiously there was a paper recently that calculated that even if there was a small black hole in the center of the Sun, it would take millions of years for it to grow, because the aperture is so small not much can fit through, and the infalling gas heats up so much as to repel the rest, creating an internal hot bubble.

          • sinkingship@mander.xyz
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            4 months ago

            I am fairly sure Earth’s radius is somewhat 6 km, so something with an 48 km radius would be 42 km above Earth’s surface, where we experience 1 G.

            Can you explain please, where I made a mistake?

            • TauZero@mander.xyz
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              4 months ago

              Can you explain please, where I made a mistake?

              Your mistake is thinking Earth is 6km in radius! :D 6km is how far you walk in an hour. Either you think Earth 1000 times too small or kilometer 1000 times too big.

              • sinkingship@mander.xyz
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                4 months ago

                😁 whooopsie! Haha. Yeah, it’s somewhat 6000 km I mean. Sorry for my stupidity here today… Thank you very much for explaining my dumb mistake instead of making fun! Time to sleep now, I guess. Thank you!

  • (⬤ᴥ⬤)@lemmy.blahaj.zone
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    4 months ago

    the cat is struggling to not fall in but tbethe people are unaffected, implying that either:

    1. Richard is capable of controlling their gravitational pull, and just hates cats
    2. The people have learned to resist gravity.
      • AlolanYoda@mander.xyz
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        4 months ago

        The selective attraction exerted on the cat by the Richard black hole reveals that Richard is allergic to cats, as cats are attracted to people allergic to them [1].

        [1] - ThisIsAManWhoKnowsHowToGling et al., lemmy.dbzer0.com (2024)

    • mexicancartel@lemmy.dbzer0.com
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      4 months ago

      I vote for option 1, since fluids are also unaffected by his gravity

      Also a slight correction, maybe Richard LOVE cats

    • Ms. ArmoredThirteen@lemmy.ml
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      4 months ago
      1. The cat had the zoomies, was running toward Richard, got spooked, turned to run away digging their carpet destroying knife hands into the carpet, and this is the still shot of them primed to reach escape velocity going away from Richard
  • henfredemars@infosec.pub
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    4 months ago

    Richard must’ve been very dense. Now that you can measure from the event horizon, he could be surprisingly likable.

      • sploosh@lemmy.world
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        4 months ago

        Saying they suck things in isn’t really correct, unless you want to also say that the sun is constantly sucking Earth toward it. It’s just gravity.

        Also, magnets don’t only work on ferrous metals. Magnets push electrons through copper loops in generators and that’s how we have electricity.

      • fakeaustinfloyd@ttrpg.network
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        4 months ago

        I think they’re implying that a black hole the mass of a person has the same gravitational attraction that the person had before collapsing (negligible).

  • mlg@lemmy.world
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    4 months ago

    Not a physicist, but how long would a blackhole of that size last lol?

    • xenoclast@lemmy.world
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      4 months ago

      Hard to be completely sure… but an earth mass black hole is roughly an inch across.

      That’s probably a Jupiter mass black hole… things would be a lot more wild at that party.

      Honestly this is an event horizon… not the black hole itself and I’m too fucking lazy to do the schwazchild calculations maybe it matters at this scale… maybe not.

  • Mac@mander.xyz
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    4 months ago

    What’s the opposite of a black hole?
    That’s me 👉😏👉