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Thread: black hole question

  1. #1 black hole question 
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    Why does a black hole have a direction? I usually think of an upside down cone in my head but I can't find an answer on google or anything about why the cone points in a single direction. Anybody know why?


    I'm always confused.
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  3. #2  
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    Allow me to explain in some simple terms.

    Think of spacial gravity as a trampoline. The more mass (lets just say weight) something has, the more of an indent it makes in space (the trampoline). A black hole has so "heavy" that it bends space so severely, it creates a hole in it.

    You should read more on the subject here


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  4. #3  
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    But why does the gravity of the black hole pull "down?" Lets say we have the classic example with a sheet spread out and we put a ball on it to represent a planet(mass). The ball warps the sheet around it because in theory, gravity warps the spacetime around it, but in the experiment, the earth's gravity is causing the ball to go down. The sheet and ball is a 2D example right? I mean in reality isn't all spacetime around a planet pulled inwards?

    What I'm saying is there is an equal amount of gravity all around our planet, it's not just off to one direction. So with a mass that becomes so great that it "falls" out of spacetime, why does it fall out to one side making that cone shape?
    I'm always confused.
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  5. #4  
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    Quote Originally Posted by MatTron
    But why does the gravity of the black hole pull "down?"
    That's why I gave you that black hole link. Jeeze man. Don't be afraid to do some reading.

    and it's quite simple, it doesn't "fall". What happens is the weight of the object makes a "dent", and since it's much easier to make the image 2d than what's really going on...most people go with that for images of what's going on.

    It, quite simply, "falls through" space-time. And ends up elsewhere, leaving behind a vortex.

    To be honest I'm really really horrible at explanations. I would prefer someone else carry this torch?
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  6. #5  
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    Observe the veindiagram.

    All has reactions, all has dimensions, reactions increase dimensions.

    That is gravity.
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  7. #6  
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    Thanks for the link Jeremy. Question answered.
    I'm always confused.
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