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What a black hole really is.
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Post by
184848
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Post by
Laihendi
Wow, is the new movie that bad?
Post by
84594
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Post by
Laihendi
That's better than guesses made by film makers that aren't really based on anything other than entertainment :x
Post by
84594
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Post by
Laihendi
How can a guess by hollywood be just as good or better? They don't do research or anything.
Post by
85162
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Post by
327953
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Post by
Laihendi
black hole destroys all monsters ion the field.
Laihendi gets it, and he never even played that game.
Post by
ASHelmy
Stupid question: how can the matter have no volume?
Post by
128491
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Post by
Patty
Stupid question: how can the matter have no volume?
Erm, at a guess, because the matter is collapsing on itself.
Post by
330954
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Post by
TheMediator
Time slows down as you approach a black hole, and there is also a redshift of light as you appreach it. Since the speed of light is unchanging, this redshift is explained as time slowing down--- not slowing down the speed of light.
Ummm, light does slow down, but only as it enters a different medium, hence why light refracts when it hits water. However, the speed of light is a constant in each medium, and is the greatest speed achieveable in said medium (i.e nothing can go faster no matter where). This means that you could well be wrong and in fact, the area around the black hole is affected by its force so strongly that it has changed its density (it may be a long shot but most speculation about space is), and therefore the red shift is caused by the light slowing down.
If I'm not mistaken sound travels faster than light through solid rock.
Post by
ASHelmy
Time slows down as you approach a black hole, and there is also a redshift of light as you appreach it. Since the speed of light is unchanging, this redshift is explained as time slowing down--- not slowing down the speed of light.
Ummm, light does slow down, but only as it enters a different medium, hence why light refracts when it hits water. However, the speed of light is a constant in each medium, and is the greatest speed achieveable in said medium (i.e nothing can go faster no matter where). This means that you could well be wrong and in fact, the area around the black hole is affected by its force so strongly that it has changed its density (it may be a long shot but most speculation about space is), and therefore the red shift is caused by the light slowing down.
No. Microscopically, light always travels at c, it only appears to be slower macroscopically due to constant absorptions are re- emissions . If I am not mistaken, some sort of radiation travels faster then light in that medium. And what does "fall onto itself" mean?
Post by
260787
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Post by
ASHelmy
And what does "fall onto itself" mean?
It basically collapses, I believe.
...
How can it collapse into nothingness?
Post by
260787
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Post by
ruleofthumb
You cannot fall into nothingness, since 'nothing' cannot exist. It is an immediate paradox.
And Wowgeek is right. We don't
know
anything about black holes. They really may be holes ripped into space-time, or they may not be. We are trying to observe something from billions of light years away based on surrounding celestial bodies. Its like trying to observe a bug in a field based on the blades of grass moving, and you're watching from 15 miles away with a pair of binoculars.
Post by
154720
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