What Happens When A White Hole And A Black Hole Collide?
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Collisions are as frequent as sunrises in the universe, but what’s the most interesting one we can ever imagine? Today, let’s talk about what happens when a white hole collides with a black hole!
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It’s easy to think that there wouldn’t ever be any collision that will happen having a vast amount of space, but we all already know that that isn’t the case. It’s elbows hitting one another all the time.
There are definitely all kinds of collisions happening all over the universe. Planets colliding with stars, Stars colliding with other stars, black holes colliding with stars, black holes crashing onto one another, and the list goes on and on. All of these are possible thanks to a little thing we call gravity.
However, I bet there’s nothing more interesting among all of these than the one we’re discussing today: what happens when a white hole collides with a black hole?
Sounds exciting? Then hold on to your pants, because it’s about to get wilder!
So, let’s start with a bit of recap about white holes and black holes.
Through Einstein’s theory of general relativity, the paradigm of having time as the ultimate standard unit of everything has changed completely. Now, we have an understanding that time is actually inseparable from space, and the very plane of the universe is actually spacetime. And in spacetime, massive objects cause a distortion which we laymen call gravity.
Let’s not talk about the pure math involved but in a more specific but simplified sense, Einstein’s field equations consequently predicts the existence of a black hole. And since its polar opposite, the white holes, are just basically black holes going backwards in time, then theoretically, they should be able to exist as well.
Let me put it down in a crazy analogy. Do you know the world famous horror character Slender Man? If that thing exists, then it implies that a Hefty Man also exists with opposite characteristics. Maybe he’s friendly, and helps you with your day-to-day life. Who knows?
I know that’s very watered down, but basically that’s how theoretically white holes came into concept.
Moving on, a black hole is a region in space that’s so dense that spacetime is effectively distorted heavily by it. The gravity of a black hole is the strongest ever known that nothing can ever escape it, not even light. Think about that: the fastest thing in the universe itself is powerless against a black hole!
Okay, now, imagine that you make a black hole run in reverse time, then you get a white hole. If a black hole is a region of strong gravitational force where nothing can ever escape, a white hole, on the other hand is a region in space where nothing can ever enter. Things can only exit out of it.
Oh, and by the way, if white holes are something that’s totally interesting to you, why don’t you go ahead and check our other video about it? You’ll be more amazed by how outrageously cool they are.
Both of these two titans have their own unique event horizons and singularities as well. Do you remember what an event horizon is for a black hole? It’s okay if you don’t. That’s what this channel is here for.
For a black hole, the event horizon is the region where the force of gravity is so strong, that once anything crosses this, there won’t be any chance of running away. Any matter that makes it this close will accelerate in a speed even faster than the speed of light until they all get drained into the singularity.
Okay, before we carry on, I can hear a lot of you reacting to that last line. I know you’re saying “are you sure about that? Nothing can go faster than the speed of light!” And I will reply with a “that’s right!”, but you are forgetting a few things.
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