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Re:The slinky machine: a slinky escalator by dpflan on Wednesday August 12, 2015 @09:54AM (#10047669)
This looks like it could be a good project for Science Olympiad. The discussions and elucidation of failure are useful and touch on the theme of supporting failure and curiosity that is being discussed in this recent top HN submission [1.].

This project is fun yet cynical - from the author: "But, one thing I’ve learned is useless crap on YouTube gets a lot of views."

[1.] https://news.ycombinator.com/item?id=10044438

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