Quantum Mechanics Joke

Werner Heisenberg was driving along the highway one day, when a highway patrol car pulled up behind him with lights flashing. Heisenberg pulled over and stopped. The patrolman approached the car, and said, "Sir, do you know how fast you were going?"

Heisenberg replied, "No, but I know exactly where I am."

The joke explained: The Heisenberg uncertainty principle of quantum mechanics holds that one cannot simultaneously determine both position and momentum (i.e. mass * velocity) of a particle. Increasing the accuracy of one, causes a decrease in the accurace of the other.

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