Recent content by Holesarecool

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    The paradox of Hawking radiation - is matter infinitely compressible?

    So as something is collapsing, whatever the state of matter, it gets to a point where the amount of it within a particular radius is now enough to curve space time to the extent where all light cones point inward. That's a certain amount of material within a certain radius of a certain volume. A...
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    Accretion disk/black hole/gas jets

    On formation of the jets, the accretion disc spins hotter and faster towards the center obviously. Now I may have my assumption wrong about the uncertainty principle, as I've only studied it in one dimention, but since we know that the most inward particles in the disc have relativistic...
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    When a star forms where does the Gravity come from?

    Imagine 10 people standing on a trampoline. If they stand at random points on the trampoline, it will only give way say about a foot. Now, if they all get together at the center and stand on top of one another, the total mass of the occupants is the same, but the affect on the trampoline is...
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    How does frame dragging cause a stick to rotate in the opposite direction?

    Now, I've read that frame dragging will cause an effect likened to planetary gears, where the spinning source is the sun gear and the object is the planetary gear. Here's where I get confused. Suppose you had a straight meter stick aimed directly at a massive rotating object from an...
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    What Happens to Sound Waves Near Black Holes?

    If a black hole has strong gravitational waves, couldn't that induce disturbances in the density of whatever material is in the path of the waves? So in affect, couldn't a black hole create sound in any close medium by jiggling spacetime?
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    How do accretion disks and black holes interact with electromagnetic forces?

    Do we know if there is any kind of periodicity to the jets? A dynamo process within the jets' radial charge distribution due to the charge and spin of the BH could lead to recombination processes on both sides of the black hole. Or is it more likely that the field of the black hole is more...
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    How do accretion disks and black holes interact with electromagnetic forces?

    Thanks for the great responses. Greatly appreciated. There haven't been many theoretical threads on the makeup or basis for relativistic jets that I've seen. Could the jets be formed by the recombination of the magnetic fields produced by the accretion discs? I know there isn't any concrete...
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    How do accretion disks and black holes interact with electromagnetic forces?

    First thread for me. Quick question. If photons mediate electromagnetic forces, and all photons are trapped inside a BH, how does the magnetic field get generated by the black hole itself? Observers never see matter fall over the EH, so does the net charge of the accretion matter generate...
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    Thoughts on electrically charged black holes

    Mrspeedybob, you said: "Taking this logic 1 step further, no event horizon can form at all because as a star collapses its gravity increases, time dilation becomes more sever, and we on the outside see the process of collapse slow down and the light get redder until the light is undetectable...
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