119 réponses à ce sujet

[Rodriguer2000]

 seems crazy but its the only way i see us traveling to distant planets lol real life mass relays

[Niddy']

The only thing I need to get around is the awesomeness that they call Jack.

[Lmaoboat]

Rodriguer2000 wrote...

 seems crazy but its the only way i see us traveling to distant planets lol real life mass relays

I think technology not based on some non-existant magical element would work better.

[ace1221]

Lmaoboat wrote...

Rodriguer2000 wrote...

 seems crazy but its the only way i see us traveling to distant planets lol real life mass relays

I think technology not based on some non-existant magical element would work better.

ah, but do we know for sure there is no substance like in EEZO? in science there are no answers only more questions. however, it does seem quite fantastical

[Lmaoboat]

ace1221 wrote...

ah, but do we know for sure there is no substance like in EEZO? in science there are no answers only more questions. however, it does seem quite fantastical

Do we know for sure there is not a china teapot revolving about the sun between Earth and Mars in an elliptical orbit?

[Lord_Moose]

In the future we may very well find ways of traveling at ludicrous speeds to get from one star to another in no time at all.

Or we find a stargate in eqypt or a mass relay orbiting pluto, You Can Never Tell.

If you want to work on the mindcrushing math it would take to calculate the perimeters to do such a thing be my guest.

[Jake71887]

Farscape... nuff said

[It IS Lupus]

There’s a lot of things you need to get across this universe. Warp drive, wormhole refractors. You know the thing you need most of all? You need a hand to hold.

[X2-Elijah]

Actually, Mass relays' principle of work does not permit FTL travel. At maximum efficiency, they would allow to go at speeds infinitely approaching to FTL, but not faster. Negative mass is nonsense, as mass is one of those things that does not permit an inverse of itself, there is only absence or presence, not an "active lack" a negative rating would imply. (Also, if a negative value for mass in introduced in the famous equation for lightspeed, the modal speed value would not rise beyond Light speed either - it'd just change the vector (and thus require a release of colossal energy rather than consume it).

So no, even if EEZO existed and had an influence on mass, the relay technology would not work.

Wormholes are the best bet for FTL travel, as they are technically permitted in contemporary physical universe.

Modifié par X2-Elijah, 28 février 2010 - 08:30 .

[max_ai]

Rodriguer2000 wrote...

 seems crazy but its the only way i see us traveling to distant planets lol real life mass relays

Hmmm, magnetic monopole has more chance of existing rather than EEZO.
E=m c^2  anyone? I think it's safe to say that it alone blows away the idea of mass relays.
Like the other guy said, smells magic to me...

EDIT: I see many responses about Wormholes and stuff. Most chances if anyone tried to go through one (given, one was to be found), that particular person would probably get spaghettified along the way, deeming it useless.

Modifié par max_ai, 28 février 2010 - 08:38 .

[Vayryn]

Whether it's a mass relay caked with ice or not, I vote that we annihilate Charon. Sending the missiles now, we'll see results in, what, a few decades? At a stroke, solve the question of what to do with all of the surplus nukes lying around and take out the collective aggression of the entire planet.



Of course, if we miscalculate and miss...

[Amethyst Deceiver]

Lord_Moose wrote...

traveling at ludicrous speeds

whats the matter Colonel Sanders? Chicken????

[Inquisitor Recon]

This discussion bores me. One of you go to Pluto and look for the damn thing.

[Jake71887]

ReconTeam wrote...

This discussion bores me. One of you go to Pluto and look for the damn thing.

But you're the recon team?

Get your ass in gear soldier. 

[adam_grif]

Particles with imaginary mass would travel at FTL speeds but could not be used for communication or transport for various reasons. Also, imaginary mass doesn't make sense.

wormhole refractors.

No known method by which wormholes may come to exist, no reason for why they would exist naturally.

Warp drive,

Also known as the Alcubierre drive, the Warp Drive has multiple nigh insurmountable technical challenges, such as:

- Requiring more energy than exists in the known universe (not an exaggeration)
- Requiring the existence of naked singularities
- Requiring the existence of negative energy, then the ability to switch it on and off at will.

Also please note that overcoming the so called "light barrier" (it's not actually anything like the sound barrier, it's much more fundamental) is only part of it, you also have to explain why FTL isn't going to result in unresolvable time paradoxes simply by virtue of running thanks to the failure of simultaneity at a distance.

Modifié par adam_grif, 28 février 2010 - 08:54 .

[Inquisitor Recon]

adam_grif wrote...

Particles with imaginary mass would travel at FTL speeds but could not be used for communication or transport for various reasons. Also, imaginary mass doesn't make sense.
Also known as the Alcubierre drive, the Warp Drive has multiple nigh insurmountable technical challenges, such as:

- Requiring more energy than exists in the known universe (not an exaggeration)
- Requiring the existence of naked singularities
- Requiring the existence of negative energy, then the ability to switch it on and off at will.

Also please note that overcoming the so called "light barrier" (it's not actually anything like the sound blah blah blah...

You know, some people are so pessimistic. I'll be killing giant space bugs while your saying that wormhole over there shouldn't technically exist. I'll send you a corpse.

Modifié par ReconTeam, 28 février 2010 - 08:56 .

[adam_grif]

You missed a [ before your quote.



Don't confuse pessimism with education

[Lmaoboat]

adam_grif wrote...

you also have to explain why FTL isn't going to result in unresolvable time paradoxes simply by virtue of running thanks to the failure of simultaneity at a distance.

Err, could you put that in layman's terms?

[Inquisitor Recon]

adam_grif wrote...

You missed a [ before your quote.

Don't confuse pessimism with education

The edit took awhile to kick in. If people dismissed everything as easily as you would nothing would get done. I am sure plenty of people dismissed splitting the atom and so forth as impossible. If we screw around enough and we'll find a way or cause a scenario resembling the incident in Half Life.

[TheUnusualSuspect]

We already know that space within the Universe is getting bigger because distant galaxies in red-shift have been seen to simply disappear in that the speed of space expansion between our galaxy and the distant one is expanding at greater than the speed of light. At present this only occurs outside of the galactic cluster scale. Within galactic clusters, space is not expanding to any observable degree.



What this does tell us though is that spatial distances are not uniform, and are mutable. If we were ever going to travel "faster than light", then it would not be by physically accelerating some spaceship mass to greater than the speed of light, it would be by doing the reverse of the spatial expansion by some method (spatial compression, or what Star Trek refers to as Warp Drive), and travel greater distances at sub-light speeds in the same amount of time.



As adam_griff describes though, Warp Drive isn't something that's going to happen easily (to express it as a major understatement).

[Lmaoboat]

ReconTeam wrote...

adam_grif wrote...

You missed a [ before your quote.

Don't confuse pessimism with education

The edit took awhile to kick in. If people dismissed everything as easily as you would nothing would get done. I am sure plenty of people dismissed splitting the atom and so forth as impossible. If we screw around enough and we'll find a way or cause a scenario resembling the incident in Half Life.

Us talking about FTL travel is like Romans talking about going to the moon.

[adam_grif]

Lmaoboat wrote...

adam_grif wrote...

you also have to explain why FTL isn't going to result in unresolvable time paradoxes simply by virtue of running thanks to the failure of simultaneity at a distance.

Err, could you put that in layman's terms?

I'll do my best.

Discovering that the Earth was round meant that the direction "up" was relative to the observer - it was nolonger the fixed constant that everybody thought it was. Where "up" is depends on where you're standing on Earth. Relativity indicates that, much like "up", "now" is depending on where you are and how fast you're travelling. This seems very strange, but it can be demonstrated in experiments. Because of this, two distant events can never be said to have occured at the same time. Hence it is known as the failure of simultineity at a distance.

Relativity also predicts an effect called relativistic time dilation (which has likewise been shown to exist in reality), where depending on how fast you're going, time passes at different rates compared to other people. The speed-of-light enforces the sequence of cause-and-effect with all of these factors in play together.

A simple explanation for how time dilation works is the following:

Two spaceships, A and B are moving apart from each other at 0.866 times the speed of light. This is chosen for convenience' sake. It reults in a time dilation factor of two, which means that the from A's perspective, B's clock is ticking at half speed and vice versa. The important thing is that nobody's perspective is "more correct" than everybody elses. This is phrased as "there are no privelidged frames of reference" in the scientific community. If there are, then relativity doesn't make any sense. It's critical that you remember this.


Now to explain why FTL creates a big problem for this:

Suppose instantaneous guns (to make calculations simpler). Their projectile travels in a straight line and at infinite velocity until it strikes something. Ship's A and B have met in the middle, turned and started moving away from each other at 0.866 C. They agree to count off 8 seconds, then turn and fire at each other.

So from A's perspective, it turns around and fires when the count hit's zero. But from his perspective, B is only at 4 seconds! So it strikes B, who has only counted 4 seconds, gets hit by a non-fatal blow. Furious that A has fired before his time is up, he turns and fires at second 4, but by second 4 from his perspective, A is only at second 6. The bolt fires and destroys ship A, only 2 seconds after his count-down had begun, a full six seconds before he fired his original shot.

This is a classic grandfather paradox. Wormholes, warp drives, hyperspace, whatever, it all results in the same thing. To make matters worse, if you calculate from B's perspective initially instead of from A, the exact opposite happens. So not only do we have a grandfather paradox, we have 2 contradictory causal series of events that both should have happened but are mutually exclusive.

[Whereto]

hey if time slows down when your traveling faster ill live for long.... shame it wont be happening

[TheUnusualSuspect]

adam_grif wrote...

Two spaceships, A and B are moving apart from each other at 0.866 times the speed of light. This is chosen for convenience' sake. It reults in a time dilation factor of two, which means that the from A's perspective, B's clock is ticking at half speed and vice versa.

Ok, this is where I get a little fuzzy about it.  Are both ships travelling at 0.866c away from the same relative start point in opposite directions?  If so, isn't the time dilation equal for both, and therefore wouldn't they both observe their clocks to tick at the same speed?  If not, why?  I got to Advanced Physics in Uni at 2nd year, but this stuff did my head in and I dropped it, and admit to never fully grasping relativity properly, so please bear with the fool and entertain my silly questions.

[Stephenc13]

Everything is possible, in the universe. The elements we discovered are only on earth, theres also dark matter that scientists have absolutely no idea what it is.