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#41 |
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FFR Player
Join Date: Mar 2007
Posts: 6
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Slautherhouse % made me believe it might be possible in a different way -the mind.
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#42 |
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FFR Player
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Screw M-theory, let's go to Carbo-theory.
Time travel, ahahahahahaha. That's to assume that time is actually a dimension and not just a way to measure and conceptualize duration, as Afro said. And I'm very well aware of how Einstein's theories relate to spacetime, and I know a very brief overview of string theory from that Flash video. The 4th dimension is nothing to me; even if time shares a lot of properties with dimensions.
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last.fm |
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#43 |
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FFR Player
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i figured out how to go back in time....sail west around the world (it would take like 3-4 months or something if you stop and look at all the tourist attractions around the globe) and when you got back to where you live, you would be one day behind!!....and you totally wouldnt know it! (international dateline) ^_^
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#44 | |
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FFR Player
Join Date: Jun 2006
Location: New York
Age: 29
Posts: 504
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This is Critical Thinking.
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Last edited by RandomPscho; 03-22-2007 at 07:06 PM.. |
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#45 | ||
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Admiral in the Red Army
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Since when was traveling faster than the speed of light a justifiable way to say that time would go backwards? Also, according to that logic, hyper space is impossible, because as soon as you'd hit the speed of light, you'd go into the past. This is kind of stupid, because the concept he explains at the very beginning is pretty much exactly what hyper space is (or rather, how it works theoretically). Also: I'm not sure if hyper space is technically the right word for what I'm thinking of, or if that's just a term used in science fiction. Quote:
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#46 | |
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ITG Stepartist
Join Date: Aug 2005
Age: 32
Posts: 231
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#47 | |
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FFR Player
Join Date: Jun 2006
Location: New York
Age: 29
Posts: 504
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The math actually works out when coupled with supper symmetry to combine all four forces into one at the right temperature. It also incorporates gravity which point-particle quantum physics doesn't. String theory comes from the problems with Einstein's relativity inability to coexist with modern quantum physics. Please correct me if I am wrong, I have absolutely no formal education on the subject. Just read halfway through a book on the subject. I take Physics next year. ![]() |
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#49 | ||
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FFR Simfile Author
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To imagine the 4th dimension, think of a hypercube (http://upload.wikimedia.org/wikipedi.../Hypercube.png). Your existance is the summation of events within the center cube. The 4th dimension is a dimension that encompasses the other 3 dimensions in order to allow events to pass within it. It is a mathematical necessity... And on the same note, that is where the other dimensions stem from. Although the 10+1 for time dimensions that string theory predicts are not intuitive like the 4th is, in order for string theory to work mathematically, it requires that many dimensions. Is it right? Well, maybe, maybe not. There has been some evidence to suggest the higgs boson has been found in nature, which could lead to supersymmetry...basically one of the big frameworks of string theory. It is likely the large hadron collider, which will be finished soon, will make more accurate experimental attempts to find evidence, or evidence against string theory. Quote:
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Last edited by Reach; 03-23-2007 at 09:47 PM.. |
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#50 |
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Admiral in the Red Army
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Obviously, must've used the wrong word then.
It's the type of travel where you bend space over the vehicle in order to allow for speeds higher than the speed of light. I'm pretty sure the way it works is basically like bending space time in front of the vehicle in such a way that it is pulled, almost as though there is a "vacuum" in the 4th dimension and it's really sort of like... pulling the universe over the vehicle rather than propelling the vehicle through space. I don't know if i believe it's physically possible, but it is a very interesting concept.
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#51 | ||
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FFR Player
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Quote:
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Warp Speed: ----------------------------------------Spaceship- ( - = space) Space warped behind the ship is "expanded". Space in front of the ship is "compressed", and the ship is forced forward. *glances at reach and waves lightly*
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#52 | |
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FFR Simfile Author
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But yes, the idea has been proposed before. I am almost certain the idea works just fine in theory. There are two practical problems with it though: 1. You would have to generate an enormous amount of energy in order to bend space enough to actually increase your velocity well past light speed. When I say enormous what I mean is about the equilivant of spinning the sun itself at an incredibly high velocity XD So in a practical sense, we would require an energy source that produces exponentially more energy than Fusion. As far as we can tell, there is only one possible option for this (zero point energy), and we have no idea how it works (or if the energy can even be used given its state). 2. You would also require a large negative energy source (antimatter of some sort). Not only would it be impossible to produce enough antimatter given our current output, it is questionable as to if it would ever be stable enough to use at such a scale (though Nasa does have plans for an antimatter rocket). In a nutshell, it is just too ineffective and impractical to be applied as something useful. We will have to find another more effective way to accomplish the faster than light effect I would think. This thing is the equivilant of a car that guzzles gas at 1,000,000 litres a second. There is no doubt in my mind there are far more effective ways to bend spacetime, but I wouldn't expect we find them any time soon ;p
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Last edited by Reach; 03-24-2007 at 10:17 AM.. |
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#53 |
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FFR Player
Join Date: Nov 2005
Posts: 10
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Assuming that one could create a stable wormhole, it would be theoretically simple to create a time machine. Simply leave one end of the wormhole on earth, and send the other up in a spaceship to accelerate up to near-light speeds.
The acceleration would cause time to move more slowly for the end in the space ship. Thus, stepping into the end of the wormhole on the spaceship would send you into the future, and stepping through the end on earth would send you into the past. However, using this technique it is impossible to create a time machine that allows you to travel backwards to any point in time before the first time machine was created. This would allow time machines to exist while explaining why we are not innundated with historians from the future. |
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#54 |
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Very Grave Indeed
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"Getting up to a speed where time passes more slowly for you than the rest of the universe" seems like a pretty unappealing way to say "aHA we've discovered time travel" You aren't travelling to the future, you're just playing with relativity a little.
To my mind, logically time travel to the past is something that could happen, but not -actual- time travel to the future (The whole, going so fast time slows down thing doesn't count, because time -is- passing at the normal rate, just you -personally- seem to think it's not. You aren't time travelling functionally, if only because you can't get "back" in any meaningful sense) |
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#55 |
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FFR Player
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I wish time travel was real.
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#56 |
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Very Grave Indeed
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Er...good to know? Do you have an opinion on the subject of how sucha thing might work, or even whether it -could- exist beyond your wish that it did?
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