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The Cracking Whip
The cracking whip is another lovely example of physics and actiona. The amazing thing about how a whip works is it's a kind of springy fibre, which gets narrower and narrower as you're going along the length. And you get to the point where at the very, very tip of the whip, you can actually exceed the speed of sound with the velocity of the very tip. So there's a minesonic boom going on att the verytip of the whip. It's actually breaking the sound barrier,. You know, like a jet wood that, you know, flying through the atmosphere. But it just happens to thatth tiny object. Ind it creates an incredibly loud noise for something so
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