4:55 There isn't technically an outside to the universe, what's streaming in are virtual particles. These are pairs of particles (like positive and negative one) that separate for a short while before merging again (going back to zero). An event horizon, or in this case a cosmic horizon, forces those two particles to separate. I'm not entirely sure how this works myself, because it seems like this is creating matter and energy out of nothing, but that's what the physics says.
@@mysterioussoup3393 Yeah, which is weird to me. You're telling me that particles, mass (and thus energy), just streams out of AND INTO a black hole? and that causes it to shrink? wouldnt it grow and still release energy? this is just telling me that infinite energy is possible to extract from empty space, which gives me hope for Zero-Point reactors and stuff.
@@hunnyjar8937 I think the articles are more of a stand in for the black holes mass, and they would normally both be consumed which keeps the mass of the black hole the same. However, when one escapes the black hole it technically loses a bit of its mass in the form of that particle. I think this has something to do with relativity as well, which makes the escapee look like radiation emitted by the black hole to an outside observer, when in reality a hawking particle is one of mass not light. It's weird and full of too much math for my brain to handle XD
No, both the particles have mass. That mass is part of the mass of the black hole, so when the first one gets sucked into the black hole the mass of the black hole doesn't change. If the second one gets sucked in the mass still doesn't change since the mass of that particle was already a part of the black holes mass. If that particle escapes, however, then that mass is no longer part of the black hole and it loses mass. I'm not a genius so I don't really know how it all works but I think that's the basic idea.
4:55 There isn't technically an outside to the universe, what's streaming in are virtual particles. These are pairs of particles (like positive and negative one) that separate for a short while before merging again (going back to zero). An event horizon, or in this case a cosmic horizon, forces those two particles to separate. I'm not entirely sure how this works myself, because it seems like this is creating matter and energy out of nothing, but that's what the physics says.
I think it's also the main mechanism that causes black holes to evaporate, named hawking radiation right?
@@mysterioussoup3393 Yeah, which is weird to me. You're telling me that particles, mass (and thus energy), just streams out of AND INTO a black hole? and that causes it to shrink? wouldnt it grow and still release energy? this is just telling me that infinite energy is possible to extract from empty space, which gives me hope for Zero-Point reactors and stuff.
@@hunnyjar8937 I think the articles are more of a stand in for the black holes mass, and they would normally both be consumed which keeps the mass of the black hole the same. However, when one escapes the black hole it technically loses a bit of its mass in the form of that particle. I think this has something to do with relativity as well, which makes the escapee look like radiation emitted by the black hole to an outside observer, when in reality a hawking particle is one of mass not light. It's weird and full of too much math for my brain to handle XD
@@mysterioussoup3393 but what happens to the other particle? does it just not have a mass?????
No, both the particles have mass. That mass is part of the mass of the black hole, so when the first one gets sucked into the black hole the mass of the black hole doesn't change. If the second one gets sucked in the mass still doesn't change since the mass of that particle was already a part of the black holes mass. If that particle escapes, however, then that mass is no longer part of the black hole and it loses mass. I'm not a genius so I don't really know how it all works but I think that's the basic idea.