It can look dumb, but I always had this question as a kid, what physical principles would prevent this?
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The problem lies in what “unstretchable” and “unbendable” means. Its always molecules and your push takes time to reach the other end. You think its instantaneous because you never held such a long stick. The push signal is slower than the light
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You think its instantaneous because you never held such a long stick.
Speak for yourself! 😏
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