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This Rod Fountain Finally Proves Me Right
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How a quartz watch works - its heart beats 32,768 times a second
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Nature's Incredible ROTATING MOTOR (It’s Electric!) - Smarter Every Day 300
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I Built 9 Satisfying Ball Machines
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World Record Chain Fountain? The Mould Effect Explained
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Why Machines That Bend Are Better
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I made a precision gearbox - with NO GEARS.
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