Discover how to build a simple DIY water-powered electricity generator at home using accessible materials. This step-by-step ...

Hydrogen! It’s a highly flammable gas that seems way too cool to be easy to come by. And yet, it’s actually trivial to make it out of water if you know how. [Maciej Nowak] has shown us how to do just ...

In a world obsessed with solar power there is still a tried-and-true power source that reigns supreme: the gasoline-powered generator. Advancements in technology have made these machines smaller, ...

This two-transistor white noise generator has a surprising feature – about 30dB more noise than the more traditional designs. Q1 and Q2 can be any small-signal transistors with a beta of up to 400.

A decent signal generator is handy for tuning electronic projects. [SC] sent in this AVR signal generator. The parts count is really, really low. An ATMega8 is the core, and a shift register runs the ...