Rock Skippin

But what exactly is the proper technique?

His idea is to build a rig that can eliminate as many variables as possible when a human tries to skip a stone, and work back one variable at a time to find the perfect set of factors. The prototype in the video below did a respectable job skipping stones, but it was nowhere near optimal.

Even skipping natural stones was much improved by what they learned, which is completely counter to the age-old advice to release as low and as parallel to the water as possible. The real gem in this video, though, is [Mark] describing his engineering design process. Watch and learn, because he clearly knows a thing or two about turning ideas into fun stuff, such as enormous Super Soakers , fully automatic snowball guns , and dart-catching dartboards.

I find them informative and entertaining, and seeing the smiles on the faces of those children always brightens my day.

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You are commenting using your Facebook account. The stone's rotation acts to stabilize it against the torque of lift being applied to the back.

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