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In the classroom demonstration at Lund University, a vacuum pump evacuates air from a large, empty oil

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In the classroom demonstration at Lund University, a vacuum pump evacuates air from a large, empty oil drum, which slowly and dramatically crumples as shown. A student friend says that the vacuum sucks in the sides of the drum. What is your explanation?

Naturvetenskeplig fysk Oils OF

turtenskaplig Fys

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Naturvetenskeplig fysk Oils OF turtenskaplig Fys

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Madhur Jain
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