does it contradicts the relativistic idea that no information can travel faster than the speed of light?
2006-07-03 16:45:07 · 6 answers · asked by Mr.A 1 in Science & Mathematics ➔ Astronomy & Space
Action at a distance is shorthand for what physicists call non-locality. Any two events which happen without enough time for a light signal to pass between them are non-local. Causally related (ie one event makes the otehr one happen) non local events are forbidden by relativity.
One potential area of interest for investigators of non-local phenomena is quantum entanglement. This interest stems back to the famous EPR paradox conceived by Einstein in the 30s. In the 60s a guy named John Bell wrote a neat inequality to express the conflict between non-locality and hidden variables in quantum theory, and in the 80s Aspect carried out an experiment to test Bell's inequality. He found no hidden variables.
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Hope this helps!
The Chicken
2006-07-03 18:47:34 · answer #1 · answered by Magic Chicken 3 · 0⤊ 0⤋
If there was a relativistic idea that no information can travel faster than the speed of light, it would have been true at the time. Since it does seem to occur that there was action at distance we wouldn't know that just because it happened since the earth is apparently closing in something that could change the direction would obviously have to be stronger to let itself be known as a safety issue. The safety is that if you pay $10 billion to the girl who levitated your country will get peace forever.
2006-07-03 21:41:26 · answer #2 · answered by 22 2 · 0⤊ 0⤋
We cannot measure the velocity and position of a particle at the same time. If we measure the velocity, the position will change and vice versa. So measuring a particle will, in effect, change the thing we are trying to measure. Action at a distance is based on quantum entangelment. We can entangle two particles. When two particles are entangled and we measure one, the other will instantaneioulsy change. This is action "faster than light" if you will. But it CANNOT transmit information.
2006-07-03 16:50:44 · answer #3 · answered by mem 1 · 0⤊ 0⤋
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2016-10-14 02:34:18 · answer #4 · answered by ? 4 · 0⤊ 0⤋
Nothing travels faster than bad news, regardless of what these "theoretical" scientists will tell you. We've already done quite a bit of research into bad news as a means of faster-than-light travel, but nobody is ever happy upon the arrival of the craft, and several messengers have been killed. Therefore further research has declined sharply.
2006-07-16 06:53:16 · answer #5 · answered by Anonymous · 0⤊ 0⤋
light itself can carry information...there fore information can travel at the speed of light... Please check out topics on Fiber optics and total internal reflection.
2006-07-19 03:13:59 · answer #6 · answered by Advice for all 2 · 0⤊ 0⤋