Here's how a high school teacher's "Mystery Box" works

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I had it figured as connected pulleys spools before it got to the reveal.


I assumed a set of pulleys or spools as guides for the string.

I…uh…What is the mystery here?!


A mistery for kids and dumbs just like me…

Four engineering solutions to the same problem. Neat!

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I am reminded of seeing a teacher demonstrating Heron’s fountain with non-seethrough containers, and then asking us what was going on.’s_fountain

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Just like my favorite He-Man toy did…

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@quori - if you assumed that it was a set of pulleys or spools, that means you already knew about pulleys and spools. If you hadn’t, this would be instructive. It was not made for people like you.

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