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[–] PresZaphod 0 points 3 points (+3|-0) ago 

It's amazing how some of the simplest everyday appliances have such a brilliant engineering feat.

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[–] markseu 0 points 2 points (+2|-0) ago 

Yup, one of my favorite videos from the engineering guy.

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[–] IAMA_Plumber-AMA [S] 0 points 2 points (+2|-0) ago 

I guess there is one moving part, if you count the ball in the ball-check valve.

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[–] AreWeHuman 0 points 2 points (+2|-0) ago 

With no moving parts except for the parts that are moving.

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[–] plankO 0 points 2 points (+2|-0) ago 

I feel kinda smart because I already knew this