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Agreed they move fast, but they do not move anywhere near light speed, let alone faster than light. I can't see how we could move backwards and farward in time. I have read all those theorys about extra dimentional travel, in fact it took me years to understand the concept of worm holes, and I don't mean just accepting a hole opening up between two locations in space time. But I cannot see a physical object with mass ever traveling those bounds. You would have to find some way to negate mass?
What I stated invloves strings.
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In physics one we studied something like einstein's theory of relativity which said that If you were to travel for a long period of time at a very high speed through space when you came back to earth it would be some time not too far in the future(actually it doesn't necessarily have to be through space). They did an experiment placing an atomic clock in a plane and flying it for long periods of time and found that when it came back the time was some fraction behind when it first left. I don't remember the actual formula but I know that this time change gets more significant the faster you travel, and is very significant traveling at the speed of light. I remember something like if you traveled to a star 10 light years away and back it would take twenty years but when you got back it would be like 21 years later or something like that. But with the technology we have right now it is not significant enough to notice.
The travel thing is the Twins Paradox, I posted a bit on it in my last post here, the other is because time is effected by gravity, higher the object faster the time, therefore the plane's time is faster.
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isnt that what a black hole does? a colapsed star (black hole) has such a large gravitational pull, large enough to bend and "swallow" light. now, there is NO such other knows force greater than that.
Black holes are simply dense colapsed stars, they have sunk into their own gravity well (Each object has gravity, imagine that an object weighs so much that it's gravity well's radius was so great that it could sink into it's self, this creates what is known as a "singularity"), anything can bend light, as long as it is supergravity (or in string theory terms "spin 8")
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one time a space probe was sent into a black hole. as it slowly drew into the back hole. its physical shape was changed. it became slender and longer (due to gravitational stress) however, unlike conventional gravity as we know it, the probe wasnt damaged in any way... as an example, imagine an egg being squeezed in your hand, you squeeze hard enough the egg would crack (conventional gravitaional stress)... but imagine you squeezing the egg, and instead of it breaking, it stretches and becomes more slender to accomidate your hand, becoming possibly, a finite shape without breakage. (blackhole gravity)
Imposable, It takes 11 months at this moment in time to reach Mars (designs for anti-mater engins are still in basic development stages, with those it will take 1 month estimated), a black hole that is even 5 years distance from us would swallow us (if you have a background in quantim physics: yes I know, but realisticly here people... the chances of a black hole the size of an atom in your living room does sound odd, no?). The process of Spegatification would destroy said probe, and it would not be able to send signals once it crosses the hole's "time horizion", However, it would apear to become "long and slender", but still be torn apart faster then 300 000 Kilometers a second (about 186 000 miles a second for any non-metrics out there).
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Perhaps time travel, even though i dont believe it is possible, is held in blackholes.
It is possable theoriticaly if you cross teh time horizion you will expirence other things, however you would need to be in the middle of somthing with a bigger mass then earth if you wanted to actualy make it TO the time horizion alive, you would be crushed because the singularities would crush you since we are 3-dimentional shapes, they cannot exist in somthing that 3 dimentions short of 3-dimentional.
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however, i DO believe that time is no barrier FOR travel. what i mean, is that we should be able to cover great distances in any amount of time. instantaneous travel so to speak. this of course means travelling at speeds greater than light. but as einstein said, nothing can ACCELERATE to the speed of light, (due to the stress that would be created), so back to black holes, as there is supposedly "no stress factor" would it be possible to accel to speeds greater than light once "inside" the black hole?
This is known as the time space continuim, the twins paradox is invetable here due to relativity, its all connected.
Things can already move faster then the speed of light, and the speed of light it's self has been brough to 0 by scientists in... I beleive it was geneiva switzerland recently, and objects such as hyperstrings can move faster, objects approching black holes move faster since the Escape Volicity of a black hole is greater then the speed of light.
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as a further note, i also think that a black hole is a wormhole, meaning that it is essentially a tunnel through space and will come out from another black hole elsewhere in the universe.
Black holes and Worm holes are two different things...
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We know light is affected by gravity already because it can be bent by large gravitational pulling forces and results in our understanding that time and space are related and not linear.
Ah, too bad that Stephan Hawking beat you to the punch of re-shaping the Time Cone to a Time Pear, cones are still used for examples however.
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That doesn't conclude that light is escaping somewhere else in another dimension or time.
Light doesn't escape, it was simply pulled in by the gravity of a black hole and then crushed in it's singularity.
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Otherwise we would see something spew out once in a while. But wait, if the gravitational pull is so great the nothing can escape it, even if they are gates, we could NOT get out.
Black holes evaporate you know... "there is no free lunch".
