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BLACK HOLE WAR EBOOK

Thursday, September 12, 2019


What happens when something is sucked into a black hole? Three decades ago, a young physicist named Stephen Hawking claimed it did-and in doing so put at risk everything we know about physics and the fundamental laws of the universe. Most scientists didn't recognize the import of. Editorial Reviews. From Bookmarks Magazine. Cosmology has been sexy since Carl Sagan, eBook features: Highlight, take notes, and search in the book. Editorial Reviews. From Bookmarks Magazine. Cosmology has been sexy since Carl Sagan, Kindle Store; ›; Kindle eBooks; ›; Science & Math.


Black Hole War Ebook

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What happens when something is sucked into a black hole? Does it disappear? Three decades ago, a young physicist named Stephen. What happens when something is sucked into a black hole? Does it disappear? Three decades ago, a young physicist named Stephen Hawking claimed that it. The Black Hole War book. Read reviews from the world's largest community for readers. What happens when something is sucked into a black hole? Does i.

What happens when an observer falls into a black hole? What happens to the faint Hawking radiation that the black hole emits? Is information destroyed in this process, or somehow just very effectively scrambled? To what extent do observers outside the black hole see the same thing as observers falling into it?

Koopopties

Black holes, it turns out, combine aspects of relativity and quantum mechanics in ways which do not allow people to ignore their mutual inconsistencies. Thinking about them is a kind of spiritual exercise, which one day may lead us to a new understanding of the most fundamental ideas in physics. Susskind does a good job of conveying the frustration of grappling with these extraordinarily treacherous questions.

He has a long drawn out series of skirmishes with Stephen Hawking, where he tries to convince him of the correctness of his point of view and meets with determined resistance.

Hawking eventually capitulates, as far as I can see mostly from exhaustion, to a bizarre argument which seems anything but conclusive. My understanding is that it's already been more or less dismissed, and the Black Hole War, far from ending in a victory for Susskind's faction, is still going on.

But I didn't feel cheated; I understand more clearly now what the issues are in this strange conflict, and I'll be better placed to follow the dispatches from the front lines.

Thank you Len, fine battlefield reporting. Consider, says Susskind, what happens to an astronaut who falls into a very large black hole. From the point of view of someone a long way from the black hole, the astronaut will be fried to a crisp as they get closer to the event horizon.

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But from astronaut's own point of view, they will be fine. Since the black hole is very large, tidal forces will not be strong at the event horizon, and the Principle of Equivalence means that they won't notice anything special happening.

Susskind says he gets plenty of crank mail from people who write to tell him they have black hole paradoxes all figured out. I am reluctant to join this unhappy band, but there is an obvious point I'm surprised not to see highlighted, and it's not mentioned either on any of the pages I found when I googled "what happens when you fall into a black hole".

The Black Hole War

Thinking about them is a kind of spiritual exercise, which one day may lead us to a new understanding of the most fundamental ideas in physics. Susskind does a good job of conveying the frustration of grappling with these extraordinarily treacherous questions. He has a long drawn out series of skirmishes with Stephen Hawking, where he tries to convince him of the correctness of his point of view and meets with determined resistance.

Hawking eventually capitulates, as far as I can see mostly from exhaustion, to a bizarre argument which seems anything but conclusive.

My understanding is that it's already been more or less dismissed, and the Black Hole War, far from ending in a victory for Susskind's faction, is still going on. But I didn't feel cheated; I understand more clearly now what the issues are in this strange conflict, and I'll be better placed to follow the dispatches from the front lines.

Thank you Len, fine battlefield reporting. Consider, says Susskind, what happens to an astronaut who falls into a very large black hole.

From the point of view of someone a long way from the black hole, the astronaut will be fried to a crisp as they get closer to the event horizon. But from astronaut's own point of view, they will be fine.

Since the black hole is very large, tidal forces will not be strong at the event horizon, and the Principle of Equivalence means that they won't notice anything special happening. Susskind says he gets plenty of crank mail from people who write to tell him they have black hole paradoxes all figured out.

The Black Hole War

I am reluctant to join this unhappy band, but there is an obvious point I'm surprised not to see highlighted, and it's not mentioned either on any of the pages I found when I googled "what happens when you fall into a black hole".

Tidal forces aren't the only thing that might kill you when you are in the extreme situation of falling into a supermassive black hole!

There is also the problem of your velocity, which, as far as I can see, asymptotically approaches the speed of light as you near the event horizon. That means that any light travelling towards you will be blue-shifted to higher and higher frequencies, which only fail to become infinite because the quantum nature of light means that it will arrive as a finite number of discrete photons.

We know there will be some such photons, due to Hawking radiation.

The last few photons you get hit by before you reach the event horizon should have truly enormous energies - quite high enough that you will get burned to a crisp from your own perspective.But real life is messier. Since the black hole is very large, tidal forces will not be strong at the event horizon, and the Principle of Equivalence means that they won't notice anything special happening.

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Renowned science writer Marcia Bartusiak shows how the black hole helped revive Einstein's greatest achievement, the general theory of relativity, after decades during which it had been pushed into the shadows. Gravitohydromagnetics describes one of the most fascinating phenomena in outer space and is comprehensively dealt with in this book.

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Susskind does a good job of conveying the frustration of grappling with these extraordinarily treacherous questions. Illustrations in the book are excellent and also helpful in explaining difficult mathematics. My understanding is that it's already been more or less dismissed, and the Black Hole War, far from ending in a victory for Susskind's faction, is still going on.

Susskind says he gets plenty of crank mail from people who write to tell him they have black hole paradoxes all figured out. Thank you Len, fine battlefield reporting.