Originally posted by Strange Wings+Aug 14 2005, 04:44 PM--></span><table border='0' align='center' width='95%' cellpadding='3' cellspacing='1'><tr><td>QUOTE (Strange Wings @ Aug 14 2005, 04:44 PM)</td></tr><tr><td id='QUOTE'>So that would mean that there's actually no chance at all to use those particles for gaining over-light speed (set the case they would exist
).[/b]
In my opinion, it would be like using photons to reach speed of light. To my knowledge, no one has ever done that, even in science-fiction

Is antimatter related to tachyon in any sense
?
No. I bet anti-tachyons might exist, provided tachyons exist of course

Anyway, while antimatter [i]does exist for real, tachyon seems to be merely an invention of science fiction stories.
Tachyons are not an invention of science-fiction, rather a
possible solution to an equation in quantum mechanics (now in
string theory) that gave some ideas to science-fiction writers.
Sorry for the mathophobes here, but I think some maths are useful to understand what are tachyons. Let's consider this equation:
It is verified if and only if both (x*x+1) and (x-1) are 0.
If we solve in the
real numbers set, then (x*x+1) has no solution, therefore the only possible value for x is 1.
However in mathematics there is the set of
complex numbers, some of them having the odd property to have as a square a negative real number. Therefore the previous equation (x*x+1=0) has 2 solutions in the set of complex numbers:
i and -
i.
If we go back to our tachyons, we can consider they are the 2 additional solutions in non-real numbers. At the time when the complex numbers were hypothetized, it looked like an artifice to have a solution where there was none. But complex numbers proved to work very well, and are applied successfully in oscillating electrical circuits, as well as in quantum mechanics. So if tachyons are hypothetical particles, that's because they do have a solution in some quantum equation, but could never been observed so far, either because the amount of energy needed to have them appear in an experiment is too high for now, because they may not interact with "ordinary" matter, or because they simply do not exist.
<!--QuoteBegin--DrFrag[/i]@Aug 14 2005, 06:20 PM
He has a tachyon receiver to transmit footage live from Jupiter, as well as being able to send the entire Castle into some kind of hyperspace.[/quote]
Well, tachyons might be useless to travel faster than light, but they could be used to transmit information faster than light, provided they interact with our matter

And provided they do not break
causality as we know it

The real sign that someone has become a fanatic is that he completely loses his sense of humor about some important facet of his life. When humor goes, it means he's lost his perspective.
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Star Wars - Exile