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Trysse posted the thread B Feasibility of Sending a Radio Signal Detectable from a Neighboring Star in Astronomy and Astrophysics.I have been wondering what it would take to send a radio signal that could be detected from a neighboring star system (for example... -
Trysse replied to the thread B Relativistic contraction factor.Right. Didn't pay attention
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Trysse replied to the thread B Relativistic contraction factor.Why ? For ##c+v## and ##c-v##, the arithmetic mean is $$\frac{(c+v)+(c−v)}{2}$$ The geometric mean is $$\sqrt{(v+c)\cdot (v−c)}$$ so I...
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Trysse reacted to TensorCalculus's post in the thread At what age is special relativity taught? with
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Yes, it is here in England. Literally the year before university - 17-18 year olds are taught special relativity as part of the A level...