Which technology? Become a bigger AH than the black hole?
Comment on How would one exit a black hole?
zeropointone@lemmy.world 1 day ago
Just use the same technology that allowed you to enter a black hole without dying.
rikudou@lemmings.world 1 day 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).
JPSound@lemmy.world 1 day 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.
daniskarma@lemmy.dbzer0.com 10 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.
JPSound@lemmy.world 7 hours ago
I would assume that anything that lies within the photon sphere could never have a stable orbit. The photon sphere is the point that light itself orbits the black hole and its 1.5x the radius of the blackhole itself. Anything closer to the singularity than this boundry is doomed to fall into the singularity as it would require faster than light speeds to maintain any stable orbit.
mkwt@lemmy.world 21 minutes ago
If I recall correctly, the photon sphere orbit is unstable, so there may not be a ton of photons there. “Unstable” in this sense means that photons in adjacent orbits tend to diverge away from the photon sphere orbit rather than toward it.
For Schwarzchild holes, the lowest circular orbit for massive objects is at 3 event horizons, which is above the photon sphere. There are unstable circular orbits down to 2 horizons. Black home rotation reduces this altitude for prograde orbits asymptotically down to 1 horizon.
zeropointone@lemmy.world 1 day ago
…which is why you need technology so powerful it can protect you from a singularity.