Try to jump so high that you fly right off of the Earth into - Page 3

Try to jump so high that you fly right off of the Earth into

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AF
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Post by AF »

Eitherway that statement of blackholes having finite gravity is a contradiction. By very definition they ahve infinite gravitational pull at the even horizon, they're singularities of infinite density by definition.
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jcnossen
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Post by jcnossen »

Black holes have a mass, and therefore a finite gravity at a distance of nonzero from the black hole. This means the gravity at the event horizon will also be finite.
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AF
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Post by AF »

That's obvious, but I'm talking more about relative to the blackhole, rather than a point thousands of AU's away. A point such as the event horizon where nothing can escape can be considered to have infinite gravity, it's a matter of perspective.

Has anyone seen cube 2: hypercube? the sequel cube:zero's on sci-fi tonight =D
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jcnossen
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Post by jcnossen »

Eh, it's not a matter of perspective, it's just math: given the mass of a black hole you can calculate where the event horizon is and you can calculate what the gravity is at the event horizon. :|
If anything in the universe has infinite gravity we'd all be pulled to it right now.
The gravity of an object causes isn't relative to anything.
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Min3mat
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Post by Min3mat »

surely its relative to distance? or its effect is lessing from distance? can you tuen infinity back into a real number? :s stfu physics and maths...why oh why didn't i drop BOTH @ A2 :(
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AF
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Post by AF »

Ha, maths aint that hard at A2, depends what bit your talking about.

Yah gravity falls away as you distance yourself from the singularity. Xept your confusion may be coming from your view of gravity. Think of it as a result of space curvature and not of some strange force pulling downwards.
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jcnossen
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Post by jcnossen »

surely its relative to distance?
It's a function of distance, but it's not relative to distance, right? :roll:
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aGorm
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Post by aGorm »

What I dont get is why your still talking about it... The simple answer to theres questions is

Go to teh Pub

have a Beer

Come back and copy and paste out a random section of a page

aGorm
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AF
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Post by AF »

It can be both. It depends on how you percieve it.
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