My understanding may be wrong, but I’m fairly sure I’ve seen water pumps moving up and down or back and forth. Wouldn’t that produce little bursts of water? How does it get so smooth and consistent?
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Not all pumps “move up and down”. Those that do are designed to pump on both the up and down stroke. Many pump by turning a water wheel, some pump by turning a screw in a tube, some pump by spinning a turbine (a fan inside a tube), some pump by pinching a tube with rollers.
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