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Posted on 01/28/2011 5:33:22 PM PST by DeoVindiceSicSemperTyrannis
The end of a black hole’s evolution may be a mind-bending kind of space-time independent of time. A new study proposes a method to tell how far any black hole is from reaching this end state.
Black holes are some of the weirdest things in the universe. They occur when mass is packed into a tiny volume, squished to its ultimate density.
Though observations suggest black holes are prevalent in the universe, scientists still don't really understand what goes on inside them. The equations of general relativity usually used to understand the physics of the universe break down in these cases.
"It is really beyond the physics we know," said Juan Antonio Valiente Kroon, a mathematician at Queen Mary, University of London. "To understand what happens inside a black hole, we need to invent new physics."
Mercifully, the physics for the end state of a black hole is somewhat simpler. A solution to the equations of general relativity was found that produced a situation called "Kerr spacetime." Scientists now think Kerr spacetime is what happens when a black hole has reached its final evolutionary state.
"Mainly the equations of relativity are so complex that for relativistic systems, the only way you can probe these equations is by means of computer," Valiente Kroon told SPACE.com. "Solutions like this Kerr solution are really exceptional. The Kerr solution is one of the few explicitly known solutions to general relativity that have a direct physical meaning."
Kerr spacetime is time-independent, meaning that nothing in Kerr spacetime changes over time. In effect, time stands still. A black hole in such a state is essentially stationary...
(Excerpt) Read more at news.yahoo.com ...
Cheney ....... Dick Cheney
What a trip! Thanks for the link.
Actually, anything past the event horizon is unobservable, so it is pure conjecture. That's what a singularity is. It's a prediction boundary that can't be breached using existing models.
Clara Moskowitz
Black holes are some of the weirdest things in the universe. They occur when mass is packed into a tiny volume, squished to its ultimate density.
I luv it when ditiz female reporterettes write about something they are completely ignorant of. First it was Firearms, now it's Physics. I swear, it's gotta be a Union Rule.
And what male bastion is next for them?
The benefit of being able to pee while standing up?
............... 
[the mods must be sleeping or have the weekend off ;-)]
Cheers!
Quite funny!
Yep, time certainly stands still with Kerr spacetime for me!
Argh! It’s the cursed black spot, matey!
You’re right. Light’s not escaping either. At least I’m only as ignorant as everybody else about what can be “seen,” LOL! This is one of the many questions I’m going to ask God when (if) I get to Him.
What’s wrong with a picture of a democrat Dick Gephardt supporter?
That was *way* too clever.
Maybe she's a Cheney fan?
Cheney fan? Not as likely, but of course I’m not about to start an argument with you, tough-and-brilliant guy. ;-p
I sure am glad you have be confused with someone else, and there is no way I'm going to correct you :-)
I’m an old woman. I get confused about things, but I got your number.
Kerr spacetime is time-independent, meaning that nothing in Kerr spacetime changes over time. In effect, time stands still. A black hole in such a state is essentially stationary....So all these black holes are "stationary" and they're all at the center of galaxies that are expanding out away from each other.Astronomers think most galaxies, including our own Milky Way, host supermassive black holes in their centers. Some researchers suspect that these are actually Kerr black holes.
Which means that astronomers, like "climate scientists", are capable of AliceInWonderland logic.
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