The whole kit was mounted on a hand truck for portability, and [Glenn] says that the charger/generator only needs to run about 5 minutes before a dead battery has enough juice to crank an engine.

How to make a mini energy generator using DC motor ...

Fabricating a proper signal generator probe is another matter entirely. [Frank]’s DIY signal generator probe does exactly what it claims to, and is very cheap to boot. After [Frank] made a ...

Inspired by NASA aerospace engineering, this project features a plasma thruster, designed to maximize efficiency and increase ...

Here, we describe how to use readily available materials to make a simple generator. Although it will only be powerful enough to light a small torch bulb, it works on the same basic principles as ...