Linked by Thom Holwerda on Thu 7th May 2009 22:24 UTC
Geek stuff, sci-fi... Today, the new Star Trek film has seen its official premiere here in The Netherlands tonight, and in honour of that, I figured an article on about the possibility of faster-than-light travel would make a good fit on OSNews. The article is quite technical, so bear with me on this one. I hope I get everything right.
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RE[2]: Comment by Laurence
by boldingd on Fri 8th May 2009 19:36 UTC in reply to "RE: Comment by Laurence"
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"Tachyons" aren't real. I can't tell if you where saying that some entity called a Tachyon routinely moves faster than the speed of lite in the real world - which is false - or if Tachyons travel faster-than-light in Star Trek. Fun fact: if a Tachyon existed in the real world, it would be carrying an infinite amount of (kinetic) energy, and would therefore be completely impossible to stop. It would also be doing any number of odd, insane things. The laws of physics do not work very well when you start talking about wandering about faster than the speed-of-light-in-a-vacuum.
In the real world, nothing can travel faster than the speed of light in a vacuum, period. Your point about the speed of light lowering in a medium is well taken, tho: light does travel more slowly through a medium, and it is possible to beat a light-pulse through a medium, in certain scenarios.

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RE[3]: Comment by Laurence
by gustl on Sun 10th May 2009 10:27 in reply to "RE[2]: Comment by Laurence"
gustl Member since:

beating light which travelling through a medium is very usual.

You just have to put some beta-emitting material into water. Beta radiation consists of electrons of a certain (high) speed, which is higher than the speed of light trough water.

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