Space Warping? Eh?

[Perfection]

thears one major problem with light speed travle

one thing is u can never travle at light speed, u can travle at 99.99999% of the speed of light, but never 100% the speed of light.
allso, say u travle at light speed around the our galixy, it whold take years and years of travle, but becus time slows down for u when u travle that fast, when u come back to earth, thear will not even be an earth. the sun whold have bernt out billions of years ago. u may have been gone 56 years your time, but earth time it whold have been 10 billion years.

Well the whole point of FTL is to violate relativity as we know it by using some greater currently not understood physics.

As for teleportation, that's been proven possible. It has been achieved with very small particles. It's probobly infeasible, though, to teleport anything on a human scale.

allso, u need about 2000 punds of fule, for every 1 pound on the ship including the ship its self, and every thing eals. so just say thears a ship that is 1 pound, u need 2000 pounds to move it. but then u need another 2000 pounds for every 1 pound of fule. but now u allso need another 2000 pounds of fule for ever 1 pound of the 2nd take of fuel.
and that gose on and on and on.

the only way around it whold be to build some kindof antimater generatior and anti mater engin.
thear already is a ainti mater generatior, but only makes 1 atom ever year or something realy slow like that.. blus its a mile in diameter or something.

Well using any classical approach is doomed to failure even with antimatter (though you neglected all sorts of other power sources like nuclear reactions).

Modern physics as we know it does not currently support FTL.

 

[History_Buff]

As for teleportation, that's been proven possible. It has been achieved with very small particles. It's probobly infeasible, though, to teleport anything on a human scale.

You mean particle entanglement and such? I seem to remember reading about that, and how cool it seemed. Especially for Computer Engineering, the uses there jumped right off the page at me.

 

[Perfection]

You mean particle entanglement and such?

Yep

I seem to remember reading about that, and how cool it seemed. Especially for Computer Engineering, the uses there jumped right off the page at me.

I've heard that quantum computing would make heavy use of this process.

 

[Neonanocyborgasm]

I was reading in 'Popular Science' today about some scientists who developed a theory about bending negative matter into a sphere around a spaceship, compressing the space ahead of the ship and expanding the space behind the ship, thus allowing speeds beyond the speed of light and an effective way of teleportation!

Now, this isn't anything more than a concept, but does this seem at all feasable? Read the article for more details.

And yes, it IS confusing

Nothing new about this. It's been out since at least the 1990's. There was a review of this method and it was calculated that it would take more energy than there is in the entire universe to do it, ie. impossible.

 

[punkbass2000]

Which one of his books?

Physics of Star Trek

Here's the bare bones of it. There's no experimental evidence that indicates FTL is possible. It has never been observed and it results in some nasty conflicts with current theory. I doubt Krauss provides any evidence against this.

Certain unverified speculative theories allow for the possibility of FTL. That's the extent of FTL in physics.

The point of the idea is that you aren't travelling faster than light.

 

[El_Machinae]

As for teleportation, that's been proven possible. It has been achieved with very small particles. It's probobly infeasible, though, to teleport anything on a human scale.

Using rhodium, I believe.

And for your second statement, I need to introduce you to Moore's Law.

 

[Tycoon101]

The thing is that you AREN"T going faster than the speed of light, the negative gravity around the ship forms a bubble and the space behind it expands and the space in front contracts, just like an accordion. Another hindrance is the fact that there is no known gravity particle, until we find one- This Is Still Just A Theory!

 

[El_Machinae]

What the scientist really needs to do is come up with a way to test the theory. I'm ALL for FTL capabilities, and I honestly wouldn't mind funding certain experiments.

 

[warpus]

it wholdnt realy work all that well

what u do is scan a body, seend the atoms of the disasimbled body from point a to pint b.

that not how it realy works.
u scan the body and rather then send the atoms from point a to point b, u simly take the atoms already at point b and asemble them to make a copy of u. the thing is ur still at pont a, and now thear are 2 of u. so u simply destroy the original copy of u at point a.

That's why I would never step into a teleportation machine if one were built - I don't want to die and have a copy of myself running around pretending to be me.

 

[El_Machinae]

And thus, we can begin a discussion of what makes 'you' into 'you'?

 

[Erik Mesoy]

Edit - sorry, Wikipedia defines cosmic censorship as something completely different from what I was thinking about.

 

[punkbass2000]

And thus, we can begin a discussion of what makes 'you' into 'you'?

I'll let you take the reins on this one

 

[Perfection]

The point of the idea is that you aren't travelling faster than light.

You talking about wormholes?

There's little to no empirical evidence that with even a massive amount of energy creating a usable wormhole can be done.

Using rhodium, I believe.

Rubidium

And for your second statement, I need to introduce you to Moore's Law.

1. Moore's law is not a law, but a rule of thumb. I don't consider it proof of anything
2. Computational ability is only one of the many many seemingly insurmountable (and probobly among the easier of these) problems with quantum teleportation. The optics required is most likely completely infeasible.

The thing is that you AREN"T going faster than the speed of light, the negative gravity around the ship forms a bubble and the space behind it expands and the space in front contracts, just like an accordion. Another hindrance is the fact that there is no known gravity particle, until we find one- This Is Still Just A Theory!

Well weather or not gravity is quantized is not the big issue, the big issue is can we create negative gravity. And there's no reason to think that we can.

What the scientist really needs to do is come up with a way to test the theory. I'm ALL for FTL capabilities, and I honestly wouldn't mind funding certain experiments.

Well, you can't test a thoery based on undiscovered hypothetical particles until you actually confirm the existance of those particles!

I'm all for FTL too, I just don't see many reasons to think it can be done.

That's why I would never step into a teleportation machine if one were built - I don't want to die and have a copy of myself running around pretending to be me.

I don't buy that philosophical idea We are at the core a series of fields holding information. The fields never cease to exist, jsut are transferred to other particles. Particles are identical so it really doesn't matter.

 

[Mirc]

Link to where it was written?

I don't know what to say. I know lots about physichs and mathematics, but not enough to agree or not with something like this. There is one thing I don't understand. If there is a sphere, why would it expand the space behind the spaceship and not ahead or in another direction? Also how could we control it?

 

[Perfection]

Link to where it was written?

I don't know what to say. I know lots about physichs and mathematics, but not enough to agree or not with something like this. There is one thing I don't understand. If there is a sphere, why would it expand the space behind the spaceship and not ahead or in another direction? Also how could we control it?

Well, I don't pretend to fully understand it either, but I do know it is unevidenced, so I dismiss it as interesting but probobly false.

 

[punkbass2000]

You talking about wormholes?

Not at all. The idea here is to warp space such that you do not move faster than light in a local sense. You will effectively travel faster than light only universally.

 

[Perfection]

Not at all. The idea here is to warp space such that you do not move faster than light in a local sense. You will effectively travel faster than light only universally.

And what are the requirements of such a device? (10 virtual dollars says it requires exotic particles that haven't been shown to exist)

 

[warpus]

And thus, we can begin a discussion of what makes 'you' into 'you'?

I don't want to get off-topic too much.. but.

Surely, if somebody kills me - I am dead, even if somebody else, far away, reconstructs me perfectly, such that the copy thinks it is me.

 

[Perfection]

I don't want to get off-topic too much.. but.

Surely, if somebody kills me - I am dead, even if somebody else, far away, reconstructs me perfectly, such that the copy thinks it is me.

But it doesn't kill you (at least if it actually worked it wouldn't). The information that makes you is never duplicated or even changed it just makes a transition from one series of particles to another. And really, the notion of different identical particles makes little sense.

 

[punkbass2000]

And what are the requirements of such a device? (10 virtual dollars says it requires exotic particles that haven't been shown to exist)

I don't know. I'm just responding to your FTL statement. This isn't about going FTL. Again, I don't know if it's feasible. But a theoretical physicist I've read says it is, a few other physicists linked in the OP agree, and very intelligent poster has declared this as old news. I'm inclined to take their word, personally, since I'm an armchair physicist at best. Is it a useful theory right now? No, but it may yield something. We don't know.