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Re: Light Speed

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Posted by Michael Kannel/">Michael Kannel on August 29, 1998 22:33:01 UTC

: : : : : : Hi there. : : : Can anybody explain me why we go beyond the light speed. : : : Thanks.Bye. : : What do you mean???? Beyond the light speed???

: : If you mean why do we not stop with light as the fastest speed that's because light doesn't travel at the same speed. It all depends on the median in which it is traveling ie. water, air,space.

: : : It is not possible to travel faster than the speed of light in a vacuum. However, if a particle (with mass) is traveling at nearly the speed of light in a vacuum, then enters a material such a water where light slows down so that it now travels faster than light in that medium, it creates a shock wave analogous to a sonic boom. This shock wave is, of course, light. That photon carries away some of the kinetic energy of the particle thus slowing it to below the local speed of light. I once read that this effect has been used to detect cosmic radiation.

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