Space Travel Engines and beyond

[Saethan]

The whole problem with the teleportation is that it\'s actually destroying the original particles and creating particles on the other side that are exact duplicates...

So if you did that to a human, you\'d have a clone once you teleported, though the clone wouldn\'t know it.

[Xordan]

Syzerian: No, it doesn\'t. The larger you are the more power you\'ll need, so it cancels out.

Quantum computing is cool.

http://www.newscientist.com/news/news.jsp?id=ns99995076

I get the magazine, but most of it gets put on the site anyway.

OT: http://www.newscientist.com/news/news.jsp?id=ns99995092

This is really cool as well.

[Kuiper7986]

true on the contrary but that might possibly mean that your subconscience is also duplicated, I dunno it gets confusing from that point on.

[Savion]

Ah foey, just strap a nuke to a guys back and channel the explosive power at one point. Buzz Lightyear to the rescue!

Or you could just sail solar winds... but thats a different school of thought.

[Ineluke]

Originally posted by Xordan
No, the point is that you won\'t have any mass.

Um I think you are a bit mistaken...
You wont have any weight you will still have the same mass as you would have on earth...
Mass and weight are different things.
And I dont think anyone will ever go faster than light.
Think of it this way..
If you have lights on this ship then the speed of light is the current speed of light plus your current speed.
Therefor you can never travel faster than light.
Particles have mass.
Photons happen to have the smallest known mass at this time which is why light is the fastest thing in the universe.

[Psybur]

Then dont turn on any lights.

[kbilik]

I\'m not sure if you (original poster) referred to the Alcubierre warp drive as a method of FTL travel. If you did, you should know that one of its main flaws is that the energy required to make these distortions in space-time is more than whats available in the visible universe. I heard you would need to convert about 400 solar masses into negative energy for a warp bubble of only 1 electron wavelength. The energy needed to propel anything macroscopic would be titanic and probably undoable.

But who knows?

[Xordan]

Ineluke, no I\'m not mistaken, I know the difference between mass and gravity. Light has no mass, due to it\'s wave/particle properties. Light it both a particle (photon) and a wave at the same time. If you use gravity to pull/push you then it\'s affects would cancel out your mass, making it 0. This means your mass wouldn\'t increase the faster you travel, so there would technically be no speed limit any more.

Another strange thing:

A light beam is traveling in excactly the opposite direction to another light beam. Both beams are travelling through a vaccum. (At 300,000 km/s)
Normally the speed they would be moving away from each other would be 600,000 km/s, but this is impossible due to relativity stuff, so they are actually moving away from each other at the same speed they are moving, which is 300,000 km/s.

Hurts my head a bit.

[kbilik]

Originally posted by kbilik
I heard you would need to convert about 400 solar masses into negative energy for a warp bubble of only 1 electron wavelength.

BTW, for those who don\'t know what \"negative energy\" is, here is a good layman\'s explanation (with pictures too): http://www.physics.hku.hk/~tboyce/sf/topics/wormhole/wormhole.html

Another link that has a more technical explanation (and includes other things as well): http://www.arxiv.org/PS_cache/gr-qc/pdf/9805/9805037.pdf