2007•arXiv (Cornell University)Open access
A simple superluminal but not physical motion
Nilton Penha, Bernhard F. Rothenstein
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Abstract
We discuss a superluminal unphysical motion which, we believe, has a high pedagogical potential. It highlights the physics behind the concept of simultaneity in special relativity and illustrates the non-physical character of superluminal speeds offering a rewarding exercise in handling the Minkowski space-time diagram.
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