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How can a zipper be considered a wedge 2024?

Benjamin Davis | 2023-04-20 00:06:17 | page views：1789
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Harper Collins

Studied at the University of Oxford, Lives in Oxford, UK.
While the zipper is a relatively modern invention, it uses two ancient tools: the wedge and the hook. A wedge is an object with a slanted surface that exerts force on other objects in order to move them up or to the side.
2023-04-24 00:06:17
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Eliza Turner

QuesHub.com delivers expert answers and knowledge to you.
While the zipper is a relatively modern invention, it uses two ancient tools: the wedge and the hook. A wedge is an object with a slanted surface that exerts force on other objects in order to move them up or to the side.
Ode To The Zipper | A Moment of Science - Indiana Public Media
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