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Hawking Changes His Mind on the Nature of Black Holes
Associated Press ^ | Jul 15, 2004 | Jane Wardell

Posted on 07/15/2004 8:30:32 PM PDT by Jet Jaguar

LONDON (AP) - After almost 30 years of arguing that a black hole swallows up everything that falls into it, astrophysicist Stephen Hawking backpedaled Thursday. In doing so, he lost one of the most famous bets in recent scientific history.

The world-famous author of a "Brief History of Time" said he and other scientists had gotten it wrong - the galactic traps may in fact allow information to escape.

"I've been thinking about this problem for the last 30 years, and I think I now have the answer to it," Hawking told the British Broadcasting Corp.'s "Newsnight" program.

"A black hole only appears to form but later opens up and releases information about what fell inside. So we can be sure of the past and predict the future."

(Excerpt) Read more at ap.tbo.com ...


TOPICS: Culture/Society; Extended News; Miscellaneous; News/Current Events; Philosophy
KEYWORDS: physics
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1 posted on 07/15/2004 8:30:33 PM PDT by Jet Jaguar
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To: Jet Jaguar
SO if no information escaped, the black hole would be completely invisible? interesting....
2 posted on 07/15/2004 8:32:24 PM PDT by .cnI redruM (Bury/Deadwards 2004!!)
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To: .cnI redruM

The original theory said ... that's why it is black.


3 posted on 07/15/2004 8:34:41 PM PDT by LouisWu (Diligence is my watchword. Well...'Casio' is my watchword, but 'diligence' is kinda cool.)
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To: Jet Jaguar; .cnI redruM

Look here :-)

http://www.freerepublic.com/focus/f-news/1171375/posts


4 posted on 07/15/2004 8:35:52 PM PDT by RadioAstronomer
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To: Jet Jaguar

Thanks, Steven. Keep up the good work and let us know from time to time what you've been thinking about even though none of it has anything to do with reality or practical application of any kind and even though Black Holes may just be a big quantum physics gag from a guy who hasn't had much to do for THIRTY YEARS!!!!


5 posted on 07/15/2004 8:38:15 PM PDT by Deb (Hey, Sen. Kerry...why the long face?)
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To: RadioAstronomer
Initially, cosmologists believed the holes were like a cosmic vacuum cleaner, sucking up everything in their path.

No, that's Roseanne Barr.

6 posted on 07/15/2004 8:38:27 PM PDT by NutCrackerBoy
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To: RadioAstronomer

Interesting.


7 posted on 07/15/2004 8:39:41 PM PDT by stylin_geek (Koffi: 0, G.W. Bush: (I lost count))
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To: Jet Jaguar
Well, even I knew that.

So9

8 posted on 07/15/2004 8:39:54 PM PDT by Servant of the 9 (Goldwater Republican)
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To: NutCrackerBoy
"initially, cosmologists believed the holes were like a cosmic vacuum cleaner, sucking up everything in their path.

No, that's Roseanne Barr.

Lewinski

9 posted on 07/15/2004 8:41:48 PM PDT by spokeshave (strategery + schadenfreude = stratenschadenfreudery)
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To: .cnI redruM
SO if no information escaped, the black hole would be completely invisible? interesting....

Yes, but the true problem is that this results in the breakdown of causality. That is what has left physicists uneasy.

So9

10 posted on 07/15/2004 8:42:19 PM PDT by Servant of the 9 (Goldwater Republican)
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To: Jet Jaguar

It's always intrigued me to think that there's "something" out there with enough gravitional pull to bend light.

...not to bring the wrath of astrophysics afficionados, but (chuckling as I say this) I always fail to see how any of this affects life on this planet in any measureable way. Because from what I read, if one of these things ever gets close enough to actually affect our "world", we have bigger problems than theorizing on what goes in, and what comes out of black holes. :-)

...even so...mighty interesting stuff this is! I still enjoy reading about it :-)


11 posted on 07/15/2004 8:42:41 PM PDT by hiredhand
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To: Jet Jaguar
Hawking did not elaborate on the BBC program how the information could be extracted from the black hole.

Stevio, let's hear the details. How can remnants of a black hole be recovered?

12 posted on 07/15/2004 8:42:51 PM PDT by stainlessbanner
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To: stainlessbanner

ipod.


13 posted on 07/15/2004 8:44:14 PM PDT by Deb (Hey, Sen. Kerry...why the long face?)
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To: hiredhand
I've never really bought the whole idea of light bending. I'm willing to accept the idea of the mean free path between reflection or refraction being so minuscule that the path looks curved, but I'm not quite sold that it actually bends.
14 posted on 07/15/2004 8:50:09 PM PDT by .cnI redruM (Bury/Deadwards 2004!!)
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To: Jet Jaguar
"A lot of people wanted to believe that information escaped from black holes but they didn't know how it could get out."

I've known a few e-mail servers that exhibited that exact behavior.

15 posted on 07/15/2004 8:51:45 PM PDT by randog
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To: Deb
Thanks, Steven. Keep up the good work and let us know from time to time what you've been thinking about even though none of it has anything to do with reality or practical application of any kind and even though Black Holes may just be a big quantum physics gag from a guy who hasn't had much to do for THIRTY YEARS!!!!

Ummm...Wrong.

Here is a list of 184 publications by Dr. Stephen William Hawking that was compiled back in 2002. You may notice he is still publishing.

http://www.hawking.org.uk/pdf/pub.pdf

16 posted on 07/15/2004 8:54:04 PM PDT by RadioAstronomer
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To: RadioAstronomer
I don't see Tang on the list. Like I said...no practical application.
17 posted on 07/15/2004 8:58:27 PM PDT by Deb (Hey, Sen. Kerry...why the long face?)
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To: hiredhand; .cnI redruM
It's always intrigued me to think that there's "something" out there with enough gravitional pull to bend light.

Look here: http://www.pa.uky.edu/~cvj/as500_lec6/as500_lec6.html

and: http://www.astro.ucla.edu/~wright/cosmolog.htm

18 posted on 07/15/2004 9:00:20 PM PDT by RadioAstronomer
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To: .cnI redruM
I've never really bought the whole idea of light bending. I'm willing to accept the idea of the mean free path between reflection or refraction being so minuscule that the path looks curved, but I'm not quite sold that it actually bends.

Google gravitational lensing.

19 posted on 07/15/2004 9:01:16 PM PDT by RadioAstronomer
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To: Deb
no practical application

You are not curious at all how this universe works?

20 posted on 07/15/2004 9:02:38 PM PDT by RadioAstronomer
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