Obviously theoretical but if I took a light year long stick and say pushed a button at the other end would that button be pushed at the same time for me as say someone standing at the button? How does the frame of reference work when physically moving something? And could that “work” as a method of instant communication?
In: Planetary Science
Nope. Even if it was a “solid” object any movement or force applied to it would propagate like a wave, and that wave would have a speed limit just like everything else.
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