Fly by Night Physics: How Physicists Use the Backs of Envelopes

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By A. Zee ’66

Published Oct. 21, 2020

Fly by Night Physics is a physics primer that aims to give undergraduate students intuitive, rather than strictly mathematical, ways to quickly think about physics problems and work their way towards rough solutions.

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PAW's October 2026 cover, featuring a photo of a loaf of challah bread and the headline "The Braids That Bind."
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