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But When Is Vacuum Really

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Posted by Tim on December 23, 2003 03:07:08 UTC

a vacuum? theoreticaly an 'ideal' vacuum doesn't exist. there is supposed to be this 'sea' of virtual particles incessantly fliting in and out of existance at such a fast rate that for the most part we can't say they ever really exist or not, that is the time span they exist is so small that it uncertain if they exist or not. but the cashmire effect shows that such particles probably do exist. i once read a theory that tryed to show how the quantum vacuum ie. this sea of virtual particles that pervades space could be thought of as a medium through which light travels. further more the theory tryed to show how phenomenon such as inertia could be explained by the interaction of massive particles with the 'sea of virtual' particles.
i'll try to get a link for the website if you like.
regards, tim

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