Date: August 23, 19101 at 17:21:36 In Reply to: massive blackholes posted by jody glenn clayton on December 20, 19100 at 21:32:16: : i think that in the center of our galaxy is a black hole that is pulling everything to the center. when this is completed,the black hole would have swallowed everything up and pushed it to its counterpart, antimatter galaxy,through a worm hole in which case the space our galaxy did occupy,would turn into an antimatter universe,the matter from our universe would explode outward until the black hole started pulling the matter back towad the center starting the whole process over again. ---- Here's my thoughts.. Imagine the funnel diagram of spacetime, where massive objects 'dent' the flat surface. Stars dent spacetime slightly, so that light, following a straight line in curved space, seems to bend just as a marble rolling across a broad shallow depression will turn. If the marble comes too close to the center, it orbits or hits the center, but if it's far enough out, or moving fast enough, it will 'slingshot' around the center. For a lightweight object like a star this is how I picture it. I believe the actual distance from one point in an orbit around a star to the opposite point (across the diameter) is greater than the calculated 'diameter' of the orbital path. To further the 'funnel' analogy, if you measure the circumference of a funnel, and calculate the diameter of that circle, and compare that to the length of string lying across the funnel (use a funnel without a hole), the string will be longer than the calculated diameter. Now consider a black hole, I would wager that the string length becomes infinite there (because THIS funnel DOES have a hole in it). Any path defined as 'crossing' a black hole is a path of infitine length. Even half the distance, from the observer to the 'singularity' is infinite. When you fall into a singularity, you fall forever. The curvature of space (the opening of the funnel) continues to get smaller all the way down. Considering this, there is no end to your journey into a singularity. Now let me get all sci-fi on you.. Since the funnel is getting smaller and smaller, it would appear that you are getting nearer and nearer the edge of it, though you will never reach it. ...like our expanding universe. We are all moving toward the edge of the universe, though we'll never get there. maybe a singularity IS another expanding universe. I don't if/how antimatter would figure in though. Perhaps the creation of a singularity IS a BIG BANG. We're not sure if our BIG BANG will continue, or contract, but if we consider that we're just someone else's black hole, our contraction would imply that their black hole would eventually explode. If we discover the fate of our universe, we have discovered the fate of black holes, and vice versa. Hawking theorizes that black holes can evaporate down to small sizes, but what ultimately happens to them is unknown. Perhaps they explode, implying that our expansion will slow and ultimately contract. Perhaps black holes live forever, and our universe will continue to expand.
|
 |
