20 Things You Didn't Know About Magnetism

The mystery of how to describe it, the mystery of where spin comes from and the mystery of whether lightning makes rocks magnetic.

By Rebecca Coffey
Aug 12, 2011 12:00 AMApr 12, 2023 2:59 PM

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1. Magnetism is familiar to every fifth grader, but describing it can confound even the most brilliant physicist.

2. Take the case of Richard Feynman. When asked to explain magnetism, he urged his BBC interviewer to take it on faith (video). After seven minutes of stonewalling, he finally said, “I really can’t do a good job, any job, of explaining magnetic force in terms of something else that you’re more familiar with because I don’t understand it in terms of anything else that you’re more familiar with.”

3. He did break down and try for a few seconds before abandoning the attempt. Those seconds were packed with oversimplifications: “All the electrons [in a magnet] are spinning in the same direction.”

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