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Nov 12, 2019 at 14:47 vote accept Jason
Nov 7, 2019 at 20:30 comment added Jason This is not my problem, the problem is why we set $\nu =c$. because $\nu$ was stiffness constant while c is the speed of light, why we substitute $\nu$ by c? @Greg.Paul
Nov 7, 2019 at 18:45 history answered QuantumEyedea CC BY-SA 4.0