da vinci bridge
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Whenever engineers don't find a job then make such kind of fun videos


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Amazing, engineers are genius
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witchcraft. burn him
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Da vinci
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Yes a great man
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Good use of friction
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This isn't because of friction. The first angled sticks are falling towards the right and the second pair are falling towards the left, both are prevented from falling due to the struts in the middle.
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