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The Dzhanibekov Effect

In this video from space, we see what happens to a spinning handle in low gravity. The gyroscopic force is strong with this one. What we are seeing is the Dzhanibekov effect, also called the Tennis Racket theorem.

(YouTube link)

Cool! It works under gravity, too, although it's harder to see because the object falls down at the same time. There's a complicated formula that explains the phenomenon, but if you don't want to read a complicated formula (or you know that won't help you), Randy Dobson shows us how it works in this video.

(YouTube link)

Think about tossing a tennis racket, then it makes more sense because most of have played with a racket like this before, or some other object in this way.  -via TYWKIWDBI

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