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originally posted by: RationalDespair
originally posted by: Korg Trinity
originally posted by: Krazysh0t
Well here are the papers if you'd like to read over them:
Backreaction of Hawking Radiation on a Gravitationally Collapsing Star I: Black Holes?
Back-reaction of the Hawking radiation flux on a gravitationally collapsing star II: Fireworks instead of firewalls
She clearly has misunderstood Hawking Radiation.
As this is a phenomenon that only occurs as a result of the Event Horizon.
Korg.
Maybe your understanding of Hawking radiation is not what you think it is. If you had read the articles you would find she has devoted clear explanations of what Hawking radiation is and how it relates to a collapsing star and her conclusions.
It's a bit shocking that you are the OP and clearly don't know what this professor is talking about and yet think you are smarter than her.
ETA: Still a flag from me though, because the topic is very interesting and she is definitely on to something!
originally posted by: TrueBrit
a reply to: Korg Trinity
Black holes, or something which behaves very much like the traditional description of a black hole, DO exist, and we do not require calculus to prove that. One only has to look at the number of Black Holes which have been discovered by observing surrounding objects, and the way they are affected by the presence of these monstrous structures.
The idea that they do not exist, simply defies the observable data from the actual universe, and when the mathematics argues with things which have been observed, then one is bound by reason to trust the observation rather than the mathematics.
Remember, black holes have massive effects on the objects surrounding them. When an observable object, wobbles in such a way as to replicate the movement of a planet around an object more than three solar masses in size, there is a good chance that there is a black hole in the vicinity. Now, as our understanding of, and ability to directly observe gravity phenomena in the universe improves, we may find that what we know to be black holes, are actually quite a bit different than we thought, but they still give off no light, in and of themselves, and they are still gravity wells in space so deep that they EAT stars! So whatever difference this lady is suggesting there might be between the classic description of a black hole, and the objects we KNOW to exist out there somewhere, it is likely to be a matter of pure semantics, and the effects of proximity to them is likely to involve precisely the same amount of totally epic fail.
originally posted by: AnarchoCapitalist
a reply to: Korg Trinity
The impossibility of a boundary or “event horizon” to a black hole was proven mathematically a while ago by physicist Stephen Crothers.
Here’s a dispute between Crothers and Dr. Christian Corda on this topic that took place back in 2011. Corda, Editor-in-Chief of The Open Astronomy Journal, had this to say about the black hole back then:
Again Steve, I suggest you change your way of proceed. I think that you are surely a talented researcher within gravitational physics, I agree with you that black-holes do not exist, but nobody will follow you if you insist to claim that not only the present community of gravitational physicists, but also the same Einstein, Schwarzschild, Hilbert, etc., i,e. the Founders Fathers of General Relativity, were wrong and the only correct person is Steve Crothers. in particular, be sure that I will NEVER follow you.
Even the scientists who claim black hole exist don’t believe their own fairy tale. They perpetuate the myth because it is part of a religious system. Religion is founded on faith, and in this case that faith is rooted in mathematical models. But like all religions, the Church of Mainstream Science has priests who don’t believe what they themselves are a preaching.
Still, it’s nice to see this myth being denounced more openly today.
originally posted by: TrueBrit
a reply to: Korg Trinity
I was not preaching at you Korg, just adding my two pence to the thread! I know you have more sense than to buy this nonsense!
originally posted by: AnarchoCapitalist
a reply to: Korg Trinity
The impossibility of a boundary or “event horizon” to a black hole was proven mathematically a while ago by physicist Stephen Crothers.
Here’s a dispute between Crothers and Dr. Christian Corda on this topic that took place back in 2011. Corda, Editor-in-Chief of The Open Astronomy Journal, had this to say about the black hole back then:
Again Steve, I suggest you change your way of proceed. I think that you are surely a talented researcher within gravitational physics, I agree with you that black-holes do not exist, but nobody will follow you if you insist to claim that not only the present community of gravitational physicists, but also the same Einstein, Schwarzschild, Hilbert, etc., i,e. the Founders Fathers of General Relativity, were wrong and the only correct person is Steve Crothers. in particular, be sure that I will NEVER follow you.
Even the scientists who claim black hole exist don’t believe their own fairy tale. They perpetuate the myth because it is part of a religious system. Religion is founded on faith, and in this case that faith is rooted in mathematical models. But like all religions, the Church of Mainstream Science has priests who don’t believe what they themselves are a preaching.
Still, it’s nice to see this myth being denounced more openly today.
originally posted by: Thecakeisalie
a reply to: Korg Trinity
The good news is that the woman is credible and the sources are credible.
The bad news it that the peer reviews could prove her wrong.
But back to the good news-there are plenty of papers being written and many of them pose a different hypothesis- each candidate is a possibility and the ones that are ruled out will thin out the crowd, which will lead to the correct answer eventually.
originally posted by: UnderKingsPeak
Current Science about the expanding from nothing
miracle of the Big Bang will be flipped on its lid.
Great thread. Big Claim straight to the point with great links, so Well Done !
Mersini-Houghton received her B.S. degree from the University of Tirana, Albania, and her M.Sc. from the University of Maryland.[11] She was awarded a Ph.D. in 2000 by the University of Wisconsin–Milwaukee. After earning her doctorate, Mersini-Houghton was a postdoctoral fellow at the Italian Scuola Normale Superiore di Pisa from 2000 to 2002. In 2002 she had a postdoctoral fellowship for two years at Syracuse University.[11] She accepted a job as faculty at University of North Carolina, and in January 2004, she started as assistant professor of theoretical physics and cosmology at UNC and was granted tenure in 2008.[11]
On October 11, 2010, Laura Mersini-Houghton appeared in a BBC programme What Happened Before the Big Bang (along with Michio Kaku, Neil Turok, Andrei Linde, Roger Penrose, Lee Smolin, and other notable cosmologists and physicists) where she propounded her theory of the universe as a wave function on the landscape multiverse.[12] Mersini-Houghton's work on multiverse theory is discussed in the epilogue of a recently published biography of Hugh Everett III.[13]
In September of 2014, she claimed to demonstrate mathematically that black holes cannot exist. She agrees with Stephen Hawking in that collapsing stars give off radiation (called Hawking radiation), but her work claims to demonstrate that this causes the star to shed mass at a rate such that it no longer has the density sufficient to create a black hole. [11][14]
originally posted by: JiggyPotamus
This is interesting to say the least. I have no read the papers yet, but plan to do so tonight. I wanted to point out that there is absolutely no way that the person presenting this hypothesis does not understand her subject matter. Maybe I will have a different opinion after reading the scientific papers, but to think that a person in her position would not understand and be aware of Hawking's ideas is highly unlikely. I am relatively certain that understanding your subject matter is a prerequisite for a teaching position, at least at that level, lol.
But Hawking Radiation can only exist if the counter part particle of the virtual pair is trapped beyond the event horizon.
In September of 2014, she claimed to demonstrate mathematically that black holes cannot exist. She agrees with Stephen Hawking in that collapsing stars give off radiation (called Hawking radiation), but her work claims to demonstrate that this causes the star to shed mass at a rate such that it no longer has the density sufficient to create a black hole. [11][14]
Most physicists foolhardy enough to write a paper claiming that “there are no black holes” — at least not in the sense we usually imagine — would probably be dismissed as cranks. But when the call to redefine these cosmic crunchers comes from Stephen Hawking, it’s worth taking notice. In a paper posted online, the physicist, based at the University of Cambridge, UK, and one of the creators of modern black-hole theory, does away with the notion of an event horizon, the invisible boundary thought to shroud every black hole, beyond which nothing, not even light, can escape.
In its stead, Hawking’s radical proposal is a much more benign “apparent horizon”, which only temporarily holds matter and energy prisoner before eventually releasing them, albeit in a more garbled form.
“There is no escape from a black hole in classical theory,” Hawking told Nature. Quantum theory, however, “enables energy and information to escape from a black hole”. A full explanation of the process, the physicist admits, would require a theory that successfully merges gravity with the other fundamental forces of nature. But that is a goal that has eluded physicists for nearly a century. “The correct treatment,” Hawking says, “remains a mystery.”
Hawking's new work is an attempt to solve what is known as the black-hole firewall paradox, which has been vexing physicists for almost two years, after it was discovered by theoretical physicist Joseph Polchinski of the Kavli Institute and his colleagues (see 'Astrophysics: Fire in the hole!').
originally posted by: neoholographic
a reply to: Korg Trinity
Your whole premise is extremely flawed and again, you don't fully understand what she's saying. You said:
But Hawking Radiation can only exist if the counter part particle of the virtual pair is trapped beyond the event horizon.
First of all, this isn't the case and Stephen Hawking doesn't agree with you, he agrees with Laura Mersini-Haughton on this point.
In September of 2014, she claimed to demonstrate mathematically that black holes cannot exist. She agrees with Stephen Hawking in that collapsing stars give off radiation (called Hawking radiation), but her work claims to demonstrate that this causes the star to shed mass at a rate such that it no longer has the density sufficient to create a black hole. [11][14]
So yes, Hawking says a collapsing star admits Hawking Radiation. So to act like she saying something stupid makes you look bad because Hawking agrees with her.
First, you talk about Hawking Radiation in absolute terms of what it can or can't be when it hasn't been observed. There's theories out there like Randall Sundrum that say black holes don't evaporate and instead embed themselves into another dimension and this could be the source of gravity.
For instance, they didn't detect Hawking Radiation at the LHC. They thought they would and Hawking Radiation would leave a signature of these mini black holes evaporating. What if black holes don't evaporate and there isn't any Hawking Radiation?
So this is your first mistake. You're talking about Hawking Radiation in absolute terms when Hawking Radiation hasn't been observed.
Secondly, you act like Mersini Haughton is an idiot that just woke up one morning and made these things up. She didn't say every object in the sky gives off Hawking Radiation just collapsing stars and this is based on what Stephen Hawking said. Hawking made these changes to to and get around the firewall paradox.
Most physicists foolhardy enough to write a paper claiming that “there are no black holes” — at least not in the sense we usually imagine — would probably be dismissed as cranks. But when the call to redefine these cosmic crunchers comes from Stephen Hawking, it’s worth taking notice. In a paper posted online, the physicist, based at the University of Cambridge, UK, and one of the creators of modern black-hole theory, does away with the notion of an event horizon, the invisible boundary thought to shroud every black hole, beyond which nothing, not even light, can escape.
In its stead, Hawking’s radical proposal is a much more benign “apparent horizon”, which only temporarily holds matter and energy prisoner before eventually releasing them, albeit in a more garbled form.
“There is no escape from a black hole in classical theory,” Hawking told Nature. Quantum theory, however, “enables energy and information to escape from a black hole”. A full explanation of the process, the physicist admits, would require a theory that successfully merges gravity with the other fundamental forces of nature. But that is a goal that has eluded physicists for nearly a century. “The correct treatment,” Hawking says, “remains a mystery.”
Hawking's new work is an attempt to solve what is known as the black-hole firewall paradox, which has been vexing physicists for almost two years, after it was discovered by theoretical physicist Joseph Polchinski of the Kavli Institute and his colleagues (see 'Astrophysics: Fire in the hole!').
www.nature.com...
So, please making these ridiculous statements and stop acting like her and the colleague she wrote the paper with are idiots.
Hawking radiation is black body radiation that is predicted to be released by black holes, due to quantum effects near the event horizon.