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| Thread: Aliens Exist! |  This thread is pages long: 1 2 3 4 5 6 7 · «PREV |
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Asheera
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posted January 27, 2009 09:21 PM |
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Quote:
I mean it is impossible that any intelligent lifeform would be able to travel large distances for a great amount of time even with light speed.With light speed it already takes light(photons)ages to reach distant placec in a single galaxy.It is nearly impossible to reach the speed of light with whatever tech(unless in stasis).
Ever heard of worm-holes?
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TheDeath
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posted January 27, 2009 09:36 PM |
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Gah Worm Holes are fiction in my opinion (of course I could be wrong), but there could possibly be other ways of 'teleportations' (I bet with some quantum effects though).
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Asheera
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posted January 27, 2009 09:37 PM |
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Worm Holes are not fiction, I once saw a documentary about them.
Or they could all be wrong... perhaps you're right.
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TheDeath
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posted January 27, 2009 09:39 PM |
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Yeah there are documentaries around them floating around.
What is a worm hole? How does it work? With gravity? How?
They never answer except "somehow magically distorting space-time".
Or that theory with two black holes at each end of the worm hole --> guess what? You'll get stuck inside literally. You can't escape from a Black Hole.
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Seraphim
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posted January 27, 2009 10:49 PM |
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Quote:
Worm Holes are not fiction, I once saw a documentary about them.
Or they could all be wrong... perhaps you're right.
My guess is that traveling does not work on wormholes because it would reqiure to be a stable one and how they would do that one is by creating a black hole and the hypothetical white hole,how? No idea.
Higher than the speed of light(299.792.458 m/s) is impossble by relativity as far as i know.
2540000 light years away.Yeah,2.5 milion years with light travel to go to our next galaxy Andromeda.
Comparison,the space probe Voyager traveled 15 mins as if it had the speed of light.It took it 30 years to do those 15 mins by normal speed.
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posted January 28, 2009 11:47 AM |
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Not 15 min, but 4 hours. Still 4h <<<<<<<<<<<<<<<< 30 years, though.
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Seraphim
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posted February 27, 2009 10:05 PM |
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phoenixreborn
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posted March 01, 2009 01:54 AM |
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Quote:
You can't escape from a Black Hole.
What is a Black Hole? How does it work? With gravity? How?
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TheDeath
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posted March 01, 2009 02:11 AM |
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Edited by TheDeath at 02:12, 01 Mar 2009.
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Just a big sphere (actually it's small compared to other cores, like a star's core), with extremely high mass (and thus density). The gravitational force is so high that not even light can escape.
By the way, what you "see" (i.e the 'black' sphere) is NOT this sphere. This sphere is MUCH smaller (it is called the singularity), but the 'black horizon' is black because light can't escape if it goes closer than that -- this is called the Event Horizon.
If you enter the Event Horizon, then you can't escape as not even light can (you don't touch the singularity instantly though, which is smaller and the "actual" black hole object, but you'll reach it in a few nanoseconds I guess).
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