|Jan19-13, 09:01 PM||#18|
Two Questions on Black Holes
Much speculation I've read about entering black holes is only about objects being much smaller than the black hole's radius, so that 100% of the object is swallowed at roughly the same time. But what if we had something much bigger than that radius (like a big planet, or even a very long piece of string trying to "clothesline" the black hole (clothesline being a wrestling move -- i have no other word for it)).
What we'd have is an object where parts of it are inside the black hole, while parts of it are outside the black hole. Time dilation and length contaction would be very different on points of this planet that are far enough from each other.
But how would those outside parts look like from the perspective of the inside parts, and how would the inside parts look like from the perspective of the outside parts (at least, while they are being sucked in)?
I also gave the planet a large speed because I thought it would help the planet reach the event horizon much more quickly more completely
(if O is the black hole, A and B are two points on the planet, and  are the "edges" of the hole:
[OOOOOOOO] A---B ===> [OOOOOOOO]A---B ===> [OOOA---BO]
as opposed to
[OOOOOOOO] A---B ===> [OOOOOOOO] A---B ===> [OOOOOOOOA]---B ===> [OOOOOOA--]-B ====> [OOOA---BO])
But I realize now that the speed of the planet is irrelevant, since the planet's time would stop/slow down as it neared the black hole, and tidal forces will still rip it apart in a "conventional" sense.
So, that was my motivation for asking :)
|Similar Threads for: Two Questions on Black Holes|
|A few questions about black holes||Astrophysics||25|
|Questions about black holes||Astrophysics||1|
|questions about black holes||Quantum Physics||1|
|Questions about black holes||Cosmology||4|
|Black holes - a few questions from a newb||General Astronomy||1|