Can I transfer information faster than the speed of light by using a really long rod?
July 12, 2004 11:33 AM Subscribe
[PhysicsFilter] This has been troubling me for a while and the answers I've gotten haven't satisfied me. Nothing travels faster than the speed of light for all intents and purposes, information included. I think I have a way around that, but I've been told it won't work. [More inside]
posted by tommasz to science & nature (47 answers total)
My idea: build a rod that stretches a long, long distance, perhaps to another solar system. I suspect that materials science would say this is impossible also, but bear with me. If you were to whack the near end of the rod at the same time as a light flash was emitted, would the other end of the rod move before the light was detected? Or would something cause sufficient delay to make them appear at the same time at the remote end. All I've ever heard was that it wouldn't work. My question now is, "why not?"