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Gas Pump Nozzles

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A gas pump's handle looks pretty complicated in cutaway, but Steve Mould breaks down its key components one-by-one.

One key bit of physics is a Venturi tube, where pressure when flow moves through a constriction.

The second key component is this linkage system, which controls the shut off in response to the Venturi tube.

←Landslide Tsunamis

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