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Physics
Classical Physics
Electromagnetism
Time-symmetry in electromagnetism: a simple puzzle
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[QUOTE=".Scott, post: 6222782, member: 489053"] They will attract each other in both cases. In both cases, they will accelerate away from each other. In one case, you start with them at a distance heading straight for each other - and they are accelerating as they approach each other. In the other case, they start close to each other - but with velocity vectors pointing away from each other. They decelerate as they move away from each other. Let's use gravity as the force. It will pull whether time goes forward or backward. Something can be in orbit and if you reverse time, it is still in orbit - but going in the same direction. In both cases, gravity is attracting them it towards the planet. Toss a rock into the air. In reverse, it bounces from the ground goes up to a highest point, and then falls into your hand. [/QUOTE]
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Forums
Physics
Classical Physics
Electromagnetism
Time-symmetry in electromagnetism: a simple puzzle
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