Aspirator pumps use the Venturi effect to create a vacuum. These devices are cheap because there are no moving parts. We looked it up and the one he is using costs ten US dollars on fleabay.
A vacuum erection device, sometimes called a vacuum pump or penis pump, is an external acrylic pump that a man uses to get and maintain an erection. The VED consists of a cylinder that goes over the ...
Interesting Engineering on MSN9h
Scientists develop new thin film-based vacuum pump that could replace bulky motorsGerman researchers at Saarland University and the Center for Mechatronics and Automation Technology (ZeMA) are working to ...
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