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quote:Originally posted by harryneildHmm i don't understand.. Can you not shine a speeded up light wave on a light detector, using binary style flashes to transmit information faster than the conventional spped of light? What is it that stops this from happening? If you can't send information using these accelerated light waves then how do they know how fast they are going since they can tell if they have arrived yet?ThankyouHarry Eakins"Knowledge has to be improved, challenged, and increased constantly, or it vanishes." Peter F. Drucker
quote:Originally posted by ukmickyTo another someoneFirstly Relativity is taking about information in light and not pure light. itís there fault why there is all this confusion because they donít explain themselves properly. secondly all their measurements are group velocity and not front velocity.They measure when the central fat part of the wave leaves the starting blocks and crosses the line,(group velocity) not the very front information part. (front velocity)so yes what youíre saying is rightThe wave basically changes shape squashing up like a spring as the central fat pure light part of the wave travels faster than c and catches up to and can even pass the front information part which is travelling at c.Michael