Despite the claims of “free energy” on the title of the video below, this is not yet another wacky perpetual motion story. We here at Hackaday fully support the laws of thermodynamics, and we think ...

A simple pressure pump, made from balloons and nylon stockings, will give more people in more places the ability to test for water contaminants and analyze blood samples. The ingenious device, ...

A few months ago we showed you a bar bot built by [GreatScott] that uses peristaltic pumps to food-safely move the various spirits and mixers around behind the curtain. The bar bot uses three of them, ...

How to Make a Water Pump - Homemade Drill Pump ...

How to Make a Air Pump - Homemade ...

The ingenious device cost just $2 to make, yet works almost as well as its expensive and cumbersome lab counterparts. A simple pressure pump, made from balloons and nylon stockings, means more people ...

A simple pressure pump, made from balloons and nylon stockings, means more people in more places will be able to test water contaminants and blood samples. The ingenious device unveiled in the ...