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
No. When you push something it doesn’t all move at the same time, the atoms push each other until they get to the end. This interaction atoms pushing each other is actually what also makes sound travel through an object. So pushing something would happen at the speed of sound in that object.
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