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- TL;DR Summary
- Paradox concerning the effect of two lightning bolts striking a balanced beam
Suppose there is a beam balanced on a fulcrum at its center of mass. One observer at rest with respect to the beam sees two lightning bolts strike the ends of the beam simultaneously, such that there is no net rotation of the beam. However, a moving inertial observer sees one bolt strike one end first and another bolt strike the other end. Why doesn't the moving observer see the beam disturbed from its equilibrium position?