• 🇰 🌀 🇱 🇦 🇳 🇦 🇰 🇮 @pawb.socialEnglish
    3·
    1 day ago

    This is not at all what it look like to observe someone fall into a blackhole. She would appear to be frozen in time for a while after passing the event horizon, kinda like a photograph. Then they would start shifting colors and fade away entirely.

    • Lightfire228@pawb.social
      1·
      20 hours ago

      If you’re not already blinded by the accretion disk

      Or torn apart from spaghettification

      Or have millions of years pass in the rest of the universe from time dilation being that close

      • Björn@swg-empire.de
        1·
        8 hours ago

        Or torn apart from spaghettification

        Shouldn’t happen with supermassive black holes because their event horizon is beyond the spaghettification limit.

        That really isn’t a property of black holes but just gravity interactions between two massive objects. If the moon came too close to earth it would break apart due to similar effects of gravity at one side being much higher than on the other.

        With objects like stellar mass black holes the effect would just be experiencable at human scales.

        Now I’m hungry for spaghetti.

  • Derpenheim@lemmy.zip
    38·
    2 days ago

    She exposes a singularity and condemns the entire universe to a wave of annihilation just to make us delete a photo. Classic.

  • chonglibloodsport@lemmy.world
    14·
    2 days ago

    Pretty funny but not accurate. Black holes do not suck you in like some kind of giant vacuum cleaner in space. You orbit a black hole just like you would any other large object (star, planet, etc). In fact, if you were in orbit around a star that spontaneously became a black hole of the same mass, your orbit wouldn’t change at all!

    • SLVRDRGN@lemmy.world
      9·
      2 days ago

      Though you’re right, I assumed the point was that she got caught in the gravity well… Which does take her away without hope of return.

      • chonglibloodsport@lemmy.world
        20·
        2 days ago

        Gravity wells don’t have breakpoints like that though. They extend out to infinity, decreasing with the reciprocal square of the distance (Inverse-square law).

        What you may be thinking of is the event horizon, but the way that works isn’t nearly as magical as people might think. As your orbit spirals in closer to the black hole (which takes an extremely long time from a stable orbit) your escape velocity gradually and smoothly increases. The event horizon is the point at which your escape velocity reaches the speed of light. What this means in practice is that you disappear from view, as the light reflecting off you can no longer escape.

        The really weird part though is the gravitational time dilation effects near a black hole. To an outside observer, your approach to the event horizon (during spiral in) slows down more and more. That observer never sees you cross the event horizon because time dilation extends your descent time out to infinity. So you’ll end up appearing frozen in time, never reaching the event horizon.

        • SLVRDRGN@lemmy.world
          1·
          1 day ago

          Haha yes, well explained. I’m familiar with this info (actually just finished reading Black Holes & Time Warps: Einstein’s Outrageous Legacy, by Kip Thorn which I highly recommend if you’re into this).

          I meant event horizon, in this instance, but yes this comic isn’t meant to be accurate anyway (last pane). But to your original point - wouldn’t the black hole be a vacuum cleaner for all things within its event horizon?

        • Naz@sh.itjust.works
          7·
          2 days ago

          Hell yeah, this is the best explanation of black hole + orbital mechanics and time properties I’ve seen published on the Internet

          Thank you for internalizing and actually understanding the phenomenon

          +1 Lemmy Coin 🪙