How backspin ACTUALLY works - in super slow motion

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How does backspin change the direction of a spinning back when it collides with a surface? It's stranger than you might think!

Here is the ball under a table video:   • You can't bounce a ball under a table  
Here's the ball burning paper video from 1000 years ago:    • Burning paper with steel ball-bearings  

Here's the paper about tennis: https://www.researchgate.net/publicat...

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