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The intermediate axis effect

March 18, 2020

Watching someone talk is a slow way of learning. Most videos are little more than that, and aren’t worth watching. But I enjoyed this one on the rotational behavior of oddly shaped rigid bodies. Like tennis rackets. It’s not too surprising if you have studied mechanics and know about eigenvectors and principal axes. The context and intuitive explanation are nice. And in this time of uncertainty, it’s nice to know the earth is stable and isn’t going to flip on its axis! (The magnetic pole is another story.)

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