Monday, July 6, 2020

How Weed Eaters Work (at 62,000 FRAMES PER SECOND) - Smarter Every Day 236



I've spoken of my love of Destin before. One of the things that I love most about him is his scientific curiosity. He's willing to point a slow-mo camera at just about anything and set up some experiments to teach himself more about whatever that camera points at. It's kind of awesome.

In this one, Destin points his Phantom high-speed at weed eater string to see how the string cuts blades of glass (cut or rip? delaminate or clean slice?) and breaks against various wire fencing materials.

We could do a lot worse than show this when talking about destructive testing in class.

There's also a second video that tries to figure out which shape or string is best. He comes to a conclusion, but I'm not sure he does nearly enough experimenting and variable isolation to actually justify the conclusion he comes to.

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