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Originally Posted by electromagneticpulse
As for the tachyon by quantem laws it can and must exist IIRC.
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There's no place for it in the Standard Model. If it doesn't interact in any way whatsoever with our stuff, it might as well be in another universe. How can we say that "exists"?
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Originally Posted by electromagneticpulse
In the quantem world objects can pass through solid matter with relative ease (gamma rays through matter for one example of objects traveling through matter)
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Gamma rays are stopped by a sheet of paper.
X-rays, of the kind used by medical doctors, is probably what you meant. They can pass through water but are stopped by lead.
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Originally Posted by electromagneticpulse
I also have to say to thurther back up the existance of tachyons is that nano bots have come under scruitiny because at their size there is problems of them running backwards which i thought fair enough bad design. Till i read the news item and found out that at their size it is a fact that entropy can run backwards for short periods of time. Were talking about objects the size of blood cells.
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I don't see what that has to do with anything having an imaginary mass.
Machines built on this scale, such as the ribosome which reads a program on DNA and constructs a protein as encoded, will run backward as well as forward. No friction, you see; and the machine just floats around with raw materials just randomly bumping into it. The output assembly is the same way.
The normal way of getting reactions to run in the right direction is to pick up the outputs rather than leaving them laying around where they might fall back in; and keep an ample supply of inputs so each input location is immediatly primed again as it is used.
That is, you make sure that there is an unballance and entropy will cause them to move in the direction to restore the ballance. Entropy doesn't go backwards. You arrange for one side or the other to be "uphill" as desired. If it is in equilibrium, then it randomly moves one way or the other dancing around that center spot.
Some reactions do run in one direction--once the parts are put together, they stick tightly, so the same mechanism that gentely puts it together can't pull them apart even if it went through the motions. Well, unless you raise the temperature...
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Originally Posted by electromagneticpulse
scientists at CERN, i think it is, are trying to detect them using particle collidors and in theory should be detected before a collision.
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A citation, please? That sounds like a headline from a tabloid or something from a SF movie. My Bogo-meter is reading rather high for that statement.
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Originally Posted by electromagneticpulse
But may also not be due to entropy for nano bots running backwards then a tachyon could still travel forward in time because their entropy would work in reverse (rock + heat = jump instead of rock + fall = heat) but with time working backwards faster then the speed of light it would be correct again. (rock + fall = heat)
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Time or entropy doesn't run backwards. If you add energy to a rock it could rise against the potential, but that's because you took it out of equilibrium and applied energy. Energy you had to get from somewhere.
If there were any such thing as a tachyon, it could not be detected. It doesn't respond to any of the 4 forces, nor does it participate in any reaction. So how can you detect it?