I know that advanced physics is a very complicated subject. I’m also aware that I’m not even an amateur when it comes to black holes and the physics involved, I’m merely an interested fiddler. I do however, understand the basic physical principles behind many things.
For example, I understand about planets being formed because mass clumps together, I understand that the gravity there can cause it to compress and heat up, I understand black holes being formed because there is somuch mass that the whole thing collapses and compresses to a very small space. I also understand how the gravity well created by a black hole won’t allow anything to escape, even light, and thus we have an event horizon. The line in space past which light can’t escape where before it can.
Now in my simple mind we should be able to lower some sensors on a bit of rope beyond the event horizon and see what is there. Ok, It’ll have to be strong rope but the principle is still the same.
What I don’t understand is how we can change some parameters such as angular velocity and make the event horizon vanish. What sort of energy requirement is that going to take? But isn’t that simply spinning the black hole to reduce it’s gravity anyway? Simply moving the event horizon nearing the singularity itself. Still leaving the singularity shrouded though. And if you made the angular velocity sufficient to remove the event horizon surely it wouldn’t be a black hole then? It’ll just be a large spinning mass on the verge of being a black hole. Better get working on a very long yet stong piece of string then if you want to see beyond the event horizon.
I was particularly impressed with the phrase ‘Getting rid of the event horizon is simply a question of increasing the angular momentum and …..’ A new definition of the word simply I fear.
Black Hole Physics makes my head hurt
I know that advanced physics is a very complicated subject. I’m also aware that I’m not even an amateur when it comes to black holes and the physics involved, I’m merely an interested fiddler. I do however, understand the basic physical principles behind many things.
For example, I understand about planets being formed because mass clumps together, I understand that the gravity there can cause it to compress and heat up, I understand black holes being formed because there is somuch mass that the whole thing collapses and compresses to a very small space. I also understand how the gravity well created by a black hole won’t allow anything to escape, even light, and thus we have an event horizon. The line in space past which light can’t escape where before it can.
Now in my simple mind we should be able to lower some sensors on a bit of rope beyond the event horizon and see what is there. Ok, It’ll have to be strong rope but the principle is still the same.
What I don’t understand is how we can change some parameters such as angular velocity and make the event horizon vanish. What sort of energy requirement is that going to take? But isn’t that simply spinning the black hole to reduce it’s gravity anyway? Simply moving the event horizon nearing the singularity itself. Still leaving the singularity shrouded though. And if you made the angular velocity sufficient to remove the event horizon surely it wouldn’t be a black hole then? It’ll just be a large spinning mass on the verge of being a black hole. Better get working on a very long yet stong piece of string then if you want to see beyond the event horizon.
I was particularly impressed with the phrase ‘Getting rid of the event horizon is simply a question of increasing the angular momentum and …..’ A new definition of the word simply I fear.