But Officer, you didn’t see me stop!

Physicist uses math to beat traffic ticket, via Physics Central and Hacker News.

The paper is dated 1 April 2012, so it may be a joke, but the idea is at least theoretically reasonable. The ticket in question was for not stopping at a stop sign. The idea is that to a police officer, a driver might appear to not stop, despite having actually reached zero speed for a moment, if another car happens to obstruct the officer’s view at the critical moment.

But is that a “stop” anyway? Is there some minimum amount of time one must be stopped at a stop sign? Still, it’s a nice little piece of mathematical modeling.

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