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Unread 01-01-2012, 17:50
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Tristan Lall Tristan Lall is offline
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Re: A Physics Quiz of a different type

Quote:
Originally Posted by the man View Post
This is only a theory. Some scientist believe that you can go faster than the speed of light, we just have no idea how to do it. A particle accelerator in Europe actually detected what they believe to be partials that can travel faster than the speed of light. I personal think it will be possible to go faster than the speed of light in the future.
It's fine to believe something, if you have a good reason for it. Here you just need to be a little more careful adding up the facts. Even the experimenters who published those results are skeptical, and are calling for independent replication of the results. (Wikipedia has a fantastic article on those results and their implications.) I wouldn't bet on the original results being upheld.

That's not to say we haven't been wrong about our understanding of the universe before—only that our understanding of the universe today is several orders of magnitude greater than in any other era of history, and because of this, experimental error is the more likely explanation for the results you mention.

Besides, any application of faster-than-light anything is still firmly within the realm of speculation (or daydreaming)—in other words, I don't think there's any good reason to believe "it will be possible to go faster than the speed of light in the future".

Also, "only a theory" doesn't really mean what you imply. Wikipedia has a dense article on theories, but the important concept is that "theories are collections of hypotheses that are logically linked together into a coherent explanation of some aspect of reality and which have individually or jointly received some empirical support". In other words, calling something a theory doesn't call it into question so much as it indicates that there has been systematic scientific inquiry into the subject.

Aside: 4 citations to Wikipedia in 4 replies? That must be a record. (And it's not a bad thing.)
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