Quote:
Originally Posted by SaintessHeart
WRONG. Particles CAN move at the speed of light (they become something called tachyons), so particle beams can move at the speed of light too.
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NO.
http://en.wikipedia.org/wiki/Tachyon
Quote:
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A tachyon is a hypothetical subatomic particle that moves faster than light. In the language of special relativity, a tachyon would be a particle with space-like four-momentum and imaginary proper time. A tachyon would be constrained to the space-like portion of the energy-momentum graph. Therefore, it cannot slow down to subluminal speeds.
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Tachyons don't move at the
same speed of light. They are limited/constrained to always move
FTL (faster-than-light), and cannot slow down.
btw, they're
hypothetical, their existence was never proven. Nobody's ever seen them, yet...