Someone said that black holes are not actual holes 🕳.. and that they are just big masses of stuff? So how do they suck stuff inside if they are a mass? Or maybe i’m completely wrong on this
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Using the theory of relativity, you can think of spacetime as being a fabric and you can think of gravity as being a bend in this fabric. One way to visualize it is think of a surface like a trampoline. If nothing is on the trampoline the fabric is flat. If you place an object on the trampoline, it will begin to bend the fabric and create a depression on the surface. Other smaller objects on the trampoline will be attracted to the larger object and roll towards it. Think about throwing marbles on the trampoline, then you yourself getting on and sitting in the middle. All the marbles will roll towards you. Because you are denser and have more mass than the marbles, they’ll be attracted and go towards the bend you are creating in the trampoline’s surface.
A black hole is an object so dense that it bends this favric so much that it is impossible for anything to get out once it falls in. Going back to the trampoline example, think about taking something so heavy like a car and squeezing it down to the size of one of those marbles. If you place it in the middle of the trampoline, it will create a really deep bend in the fabric (assuming it doesn’t rip of course). Everything on the trampoline will fall towards this, including you probably if you were on.
From the side, it will look like there is a hole in the middle of the trampoline that everything is falling into. A black hole looks like a hole because even light can not escape it’s pull, so we can’t see what it actually looks like. But it is really an incredibly dense collection of mass that has an extremely strong gravitational pull.
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