And can you tell me why is it time dilation instead of length contraction?
Both explain the same effect just fine. How do you know when it is length contraction or when it is time dilation?
If I can explain a special relativistic effect with both Lorentz-Fitzgerald Contraction and Time Dilation, then which one is the correct answer?
Because, for example in the experiment with the muons coming from the atmosphere, the explanation was Time Dilation, but we can explain it with...