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Old 04-16-2009, 04:05 PM   #91
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So you are saying you fit into that list of people then?
Yes.

For example, I waste a lot of time reading about MMA, and listening to metal on this computer. These may seem easier to swallow to us, but they certainly have a lot in common with the people I make jabs at for being obsessed with football/basketball or waste time watching tv. (Although, of course, I think listening to music is almost always >>> watching tv, but you get my drift I think)
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Old 04-16-2009, 07:28 PM   #92
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i feel like this would be really powerful if it werent so poorly made
it shows that this generation will never meet anything in outer space.
Alpha Centauri a is the nearest star to our solar system and even this is unreachable for humans.
kinda sad
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Old 04-17-2009, 01:12 AM   #93
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i feel like this would be really powerful if it werent so poorly made
You know what's poorly made? Our own fucking universe... it seems wrong that, if Einstein is right and the speed of light is as fast as anything could travel, that even if we could travel that fast we could still put our spaceship on autopilot and take a shit before we reach the sun.
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Old 04-17-2009, 01:16 AM   #94
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You know what's poorly made? Our own fucking universe... it seems wrong that, if Einstein is right and the speed of light is as fast as anything could travel, that even if we could travel that fast we could still put our spaceship on autopilot and take a shit before we reach the sun.
The universe itself, shortly after the big bang, expanded at a rate which is faster than the speed of light. It is called the period of "inflation".

But what we need are worm holes.
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Old 04-17-2009, 01:24 AM   #95
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Speaking of Space, anyone see South Park last night?

lol, the end of the episode actually really made me think of this thread. Spoilers ahead:

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Old 04-17-2009, 01:28 AM   #96
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Alright space nerds, can we make worm holes?
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Old 04-17-2009, 01:44 AM   #97
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Well, maybe someday.

Wormholes are simple two holes in space which connect to one another when space-time is warped around itself, allowing for travel through an immense amount of space-time in a very short time. You could get from point A to point B by using a worm hole much much much faster than the time it would take light to reach it going though regular space.

There is no empirical evidence of worm holes but there are many many many many different aspect of the Theory of Relativity which allow for worm holes to be valid solutions. It has also been demonstrated mathematically that traversable worm holes could exist and be naturally occurring.
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Old 04-17-2009, 01:50 AM   #98
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Do you know how someone would one theoretically make one?
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Old 04-17-2009, 01:52 AM   #99
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Have any naturally occurring wormholes been discovered?

No. If they do exist, they are likely to be the result of primordial microscopic wormholes being inflated to macroscopic size during the inflationary phase of the universe’s development.



If no wormholes have ever been discovered, why should we consider them?

The best way to test and extend our theories of nature, especially in the absence of experimental data, is to check their logical consistency in extreme hypothetical cases. This, after all, is how Einstein discovered relativity. Wormholes are examples of such cases. They are predicted by an extremely well tested physical theory, general relativity. If we believe this theory, then we believe that they can exist. If they can exist, and if circumstances conducive to their creation and maintenance have occurred, they do.



How could a macroscopic wormhole arise naturally?

The primordial universe might have spawned, through a process known as “quantum tunneling”, unstable cosmic wormholes that have been expanding along with the universe. If the accelerating expansion of the universe first detected in 1998 is due to cosmic exotic matter, such matter might somehow have expanded the submicroscopic wormholes believed to be contained in the vacuum state of spacetime.



What hazards are encountered in attempting to traverse a wormhole?

A traveler attempting to traverse a wormhole might be ripped to death by gravitational tidal forces, be incinerated by high radiation emitted near a singularity, be damaged by contact with exotic matter, or die of old age in transit. He might also become trapped within the wormhole or on the distant side of it, after he inadvertently induces its collapse by attempting to pass through it. It is in principle possible, however, to engineer a wormhole that alleviates each of these hazards arbitrarily well.



Could wormholes be used for interstellar communication?

Yes. It would in fact be much easier to create a wormhole that permits the passage of message-carrying light signals than it would be to create one that ensures the safe passage of human travelers.



How difficult would it be to create a wormhole?

The ability to create a traversable wormhole is well beyond current human technology. It would require the enlargement of one of the many submicroscopic quantum wormholes believed to exist within any volume of space. The process would likely require an intense, ultra-high frequency negative energy source -- something we have no idea how to produce.

*Stolen from and FAQ on Wormholes.
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Old 04-17-2009, 01:57 AM   #100
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Essentially we would need to harness anti-gravitational exotic matter. Stuff similar to just like what i mentioned earlier which is causing the universe to expand at the increasing rate that it is.
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Old 04-17-2009, 02:08 AM   #101
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Awesome stuff.
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Old 04-17-2009, 02:21 AM   #102
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anti gravity? sounds like nonsense.

There are some solutions that violate Einstein's equations which imply negative energy, but not anti gravity.

The existence of anti gravity would violate first law of thermodynamics as well.

There's also the idea that (using the effects of Special Relativity) a space ship warps the spacetime either side of it (contracts it in front and expands it behind). So that locally, it's not traveling greater than the speed of light, but it would beat a light beam (outside the 'bubble') traveling along side it to a destination.

It's called a Alcubierre drive.

But the question is.. how do you build it? =P

Last edited by phagist_; 04-17-2009 at 02:27 AM..
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Old 04-17-2009, 02:24 AM   #103
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Hey nerd give me your lunch money!
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Old 04-17-2009, 02:28 AM   #104
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Hey nerd give me your lunch money!
But sir, I'm so hungry!
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Old 04-17-2009, 02:30 AM   #105
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I'll flush your head down the toilet!
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Old 04-17-2009, 02:31 AM   #106
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FINE.. I'll do your calculus homework =(
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Old 04-17-2009, 02:36 AM   #107
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And don't forget to show the calculations DWEEB!
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Old 04-17-2009, 02:53 AM   #108
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just please don't take my lunch money Mr. I only have a quarter!
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Old 04-17-2009, 03:10 AM   #109
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Originally Posted by phagist_ View Post
There's also the idea that (using the effects of Special Relativity) a space ship warps the spacetime either side of it (contracts it in front and expands it behind). So that locally, it's not traveling greater than the speed of light, but it would beat a light beam (outside the 'bubble') traveling along side it to a destination.

It's called a Alcubierre drive.
I've read a short bit about this in an interview I think was linked from this board... The physicist said, however, that it would take more energy than the sun has produced in its whole lifetime to accomplish that. Even if we could produce energy through fusion, it seems like we would have to have billions upon billions (probably quadrillions? I dont fuckin know) of fusions going on at once to achieve this energy.
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Old 04-17-2009, 03:32 AM   #110
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haha that's why I asked how do you build it, shit's fucked.

Kinda depressing knowing that we'll never get to explore space even a fraction in this lifetime =(.
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Old 04-17-2009, 04:39 AM   #111
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anti gravity? sounds like nonsense.

There are some solutions that violate Einstein's equations which imply negative energy, but not anti gravity.

The existence of anti gravity would violate first law of thermodynamics as well.

There's also the idea that (using the effects of Special Relativity) a space ship warps the spacetime either side of it (contracts it in front and expands it behind). So that locally, it's not traveling greater than the speed of light, but it would beat a light beam (outside the 'bubble') traveling along side it to a destination.

It's called a Alcubierre drive.

But the question is.. how do you build it? =P
I'm sorry, anti-gravity is not the term I should have used. I was speaking of exotic mass is all.
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Old 04-17-2009, 05:27 AM   #112
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How about bending space?
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Old 04-17-2009, 05:38 AM   #113
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That's what the Alcubierre drive does that I mentioned (well, it bends space-time to be specific).
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Old 04-17-2009, 07:05 AM   #114
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How about bending space?
That's essentially what gravity does, or rather it describes. Gravity doesn't actually "pull" anything, rather, massive bodies warp time-space and bodies of significantly lesser mass fall into the warped space.
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Old 04-17-2009, 08:32 AM   #115
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launch the james webb space telescope already!!!

http://www.jwst.nasa.gov/about.html
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