How would one exit a black hole?

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• wreckedcarzz@lemmy.world ⁨30⁩ ⁨minutes⁩ ago

  You go into a white hole, duh

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• jerkface@lemmy.ca ⁨33⁩ ⁨minutes⁩ ago

  The only direction is forward.

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• RickyRigatoni@retrolemmy.com ⁨40⁩ ⁨minutes⁩ ago

  You just pop out the white hole on the other end.

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• BrainInABox@lemmy.ml ⁨1⁩ ⁨hour⁩ ago

  One wouldn’t

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• remon@ani.social ⁨22⁩ ⁨hours⁩ ago

  Image

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• dual_sport_dork@lemmy.world ⁨20⁩ ⁨hours⁩ ago

  You evaporate over billions of years via Hawking radiation.

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  • rikudou@lemmings.world ⁨19⁩ ⁨hours⁩ ago

    Try more like trillions of trillions of trillions… repeat a few more times.

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  • TranquilTurbulence@lemmy.zip ⁨16⁩ ⁨hours⁩ ago

    As if being shredded atoms wasn’t harsh enough, you don’t even get keep your neutrons and electrons in this process. I guess it still counts as “exiting” the black hole, but just barely.

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• dogs0n@sh.itjust.works ⁨13⁩ ⁨hours⁩ ago

  When you’re ready, you should see a bookshelf. Start messing with the books to send a message to your daughter and maybe she will help you.

  Prerequisites: daughter

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  • sbeak@sopuli.xyz ⁨9⁩ ⁨hours⁩ ago

    :0

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• Strider@lemmy.world ⁨3⁩ ⁨hours⁩ ago

  Through a white hole.

  (not kidding)

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• Kolanaki@pawb.social ⁨16⁩ ⁨hours⁩ ago

  Generally speaking, as Hawking Radiation.

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  • HeyThisIsntTheYMCA@lemmy.world ⁨15⁩ ⁨hours⁩ ago

    what if i want to use my legs afters

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    • adespoton@lemmy.ca ⁨12⁩ ⁨hours⁩ ago

      You’d have to build them first.

      Anything more complex than an atom is going to be disintegrated before it even enters a black hole due to the intense energies at play at the interface.

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• phoenixz@lemmy.ca ⁨8⁩ ⁨hours⁩ ago

  Space time gets so curved that literally every direction around you is the center of the black hole.

  You look forward? Black hole center.

  Behind you? Center

  Up down? You guessed it

  From your perspective, the center literally is the only direction you can go, deeper.

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  • BuboScandiacus@mander.xyz ⁨1⁩ ⁨hour⁩ ago

    Image

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• DeathByBigSad@sh.itjust.works ⁨10⁩ ⁨hours⁩ ago

  Have 5D future humans put you in the tesseract, then you exit seeing your daughter on their deathbed while you barely aged a day.

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• JPSound@lemmy.world ⁨19⁩ ⁨hours⁩ ago

  Literally, impossible. To exit the event horizon of a black hole, you’d have to travel faster than the speed of light. We know for a fact that anything with mass cannot travel at the speed of light. (And anything without mass MUST travel at the speed of light) Once you cross the event horizon, you’ve been entirely and irreversibly separated from the rest of the universe.

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  • WoodScientist@sh.itjust.works ⁨8⁩ ⁨hours⁩ ago

    It’s not even about needing to exceed the speed of light. Once you cross the event horizon, spacetime around you is so warped that “out” doesn’t exist anymore. Point your ship in any direction and fire up your FTL engine; it doesn’t matter. No matter which way you try and fly your ship, you’ll be getting closer to the center. Once you cross the event horizon, there is literally no way out.

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    • JPSound@lemmy.world ⁨1⁩ ⁨hour⁩ ago

      I love how mind bending it is imagining what lies inside a black hole. Everything we know about physics essentially goes right out the window beyond the event horizon.

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  • chicken@lemmy.dbzer0.com ⁨10⁩ ⁨hours⁩ ago

    Does this also mean that black holes are totally indestructible?

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    • JPSound@lemmy.world ⁨9⁩ ⁨hours⁩ ago

      Well, there’s the hypothesis of a “naked singularity” whereas if enough charge or spin could be added to a black hole, the event horizon, aka, the black part of a black hole, could just vanish. This would expose the singularity at its center but its just a hypothesis. Or better yet, a thought experiment at best. This wouldn’t eliminate its mass though.

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    • WolfLink@sh.itjust.works ⁨10⁩ ⁨hours⁩ ago

      Basically.

      They slowly decay as hawking radiation, but there’s nothing you can do to speed up the process.

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• db2@lemmy.world ⁨22⁩ ⁨hours⁩ ago

  You wait for it to reach a critical mass and explode. Might take a little while.

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  • remon@ani.social ⁨22⁩ ⁨hours⁩ ago

    You’re maybe thinking of white dwarfs. Black holes don’t do that.

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  • Tollana1234567@lemmy.today ⁨4⁩ ⁨hours⁩ ago

    depends how close you are, and not getting spaghettified.

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  • victorz@lemmy.world ⁨22⁩ ⁨hours⁩ ago

    Do they do that? Is that what the Big Bang was?

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    • remon@ani.social ⁨22⁩ ⁨hours⁩ ago

      They don’t. They do evaporate though.

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    • timroerstroem@feddit.dk ⁨22⁩ ⁨hours⁩ ago

      More or less. In my layman’s understanding: Black holes ‘evaporate’ slowly through Hawking radiation, losing mass as a function of their surface area (simplistically, particle/anti-particle pairs ‘pop out of nothing’ near the event horizon, one gets swallowed up the other escapes, this means a net loss of energy, which has to ‘paid’ by the black hole losing mass, think E=mc^2^).

      Since a black hole behaves (geometrically) like any other sphere, the proportion of its area to its volume will grow as the black hole loses mass (i.e. it will have more and more relative area the smaller it gets), this process speeds up over time thus ending in what I guess you could call an explosion (more a whimper than a bang, to borrow a phrase).

      Part 2 of your question: We don’t know.

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• zakobjoa@lemmy.world ⁨16⁩ ⁨hours⁩ ago

  Through the gift shop.

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  • Alexstarfire@lemmy.world ⁨15⁩ ⁨hours⁩ ago

    Image

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• zeropointone@lemmy.world ⁨19⁩ ⁨hours⁩ ago

  Just use the same technology that allowed you to enter a black hole without dying.

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  • JPSound@lemmy.world ⁨19⁩ ⁨hours⁩ ago

    With super massize black holes, you could pass the event horizon and not even know it. To you, everything would remain relatively (no pun intended) comfortable. You could live for a couple days, falling towards the singularity before the gravitational gradient becomes enough to rip you apart, thus ending your life.

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    • daniskarma@lemmy.dbzer0.com ⁨4⁩ ⁨hours⁩ ago

      Now I have a doubt. Could you have a stable orbit around the singularity but inside the event horizon?

      Maybe you could live a comfy life there.

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    • zeropointone@lemmy.world ⁨19⁩ ⁨hours⁩ ago

      …which is why you need technology so powerful it can protect you from a singularity.

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  • CatDogL0ver@lemmy.world ⁨16⁩ ⁨hours⁩ ago

    Which technology? Become a bigger AH than the black hole?

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    • zeropointone@lemmy.world ⁨16⁩ ⁨hours⁩ ago

      I mean… kind of.

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  • rikudou@lemmings.world ⁨19⁩ ⁨hours⁩ ago

    That’s actually not that hard, if we’re talking about a rotating black hole that’s sufficiently large (like the supermassive ones are).

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• nikosey@lemmy.world ⁨14⁩ ⁨hours⁩ ago

  don’t fight against gravity by trying to fly directly towards the universe. Instead, fly parallel to the universe until you are out of the black hole’s pull, then angle back towards the universe.

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  • Backhandedsmack@lemmy.world ⁨6⁩ ⁨hours⁩ ago

    No no no. You need to take the u-turn at the other end of the universe.

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• Im28xwa@lemdro.id ⁨18⁩ ⁨hours⁩ ago

  go to the other end

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  • Notyou@sopuli.xyz ⁨12⁩ ⁨hours⁩ ago

    Exactly, when you’re going through hell, keep going. Maybe you’ll find a white hole in the other end with a new universe to explore.

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• allo@sh.itjust.works ⁨18⁩ ⁨hours⁩ ago

  with a stronger blackhole next to your blackhole. just have a stronger pull.

  its like how do u have bribed politicians not vote according to that bribe: bribe them with a bigger bribe.

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• thatradomguy@lemmy.world ⁨18⁩ ⁨hours⁩ ago

  feed it taco bell

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• Zachariah@lemmy.world ⁨22⁩ ⁨hours⁩ ago

  by entering a black hole nested in that black hole

  space.com/…/is-our-universe-trapped-inside-a-blac…

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• xePBMg9@lemmynsfw.com ⁨15⁩ ⁨hours⁩ ago

  With the assumption that we are alright in there, wait until it evaporates naturally. I hope you brought a lot of books, cause depending on its mass, it can take some time.

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  • 667@lemmy.radio ⁨11⁩ ⁨hours⁩ ago

    Only from an outside perspective. Inside the black hole it’s already next Tuesday.

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• Asidonhopo@lemmy.world ⁨19⁩ ⁨hours⁩ ago

  Magic

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• mechoman444@lemmy.world ⁨10⁩ ⁨hours⁩ ago

  Spaghettified… Mostly.

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• Tiger666@lemmy.ca ⁨17⁩ ⁨hours⁩ ago

  The singularity will pull you in, feet first, then the tidal effect will spaghettify you. You will be ripped apart atom by atom by those same tidal forces. You cannot escape the event horizon.

  Good luck!

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  • CatDogL0ver@lemmy.world ⁨16⁩ ⁨hours⁩ ago

    Perhaps op can escape in a form of radioadiation…

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• BeatTakeshi@lemmy.world ⁨16⁩ ⁨hours⁩ ago

  You just need water and magnets

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• BeatTakeshi@lemmy.world ⁨16⁩ ⁨hours⁩ ago

  You throw a big party in a place as far as your eyes can see. You call it the event horizon.

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