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 ...

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.

Web comic xkcd notes that "through 20 years of effort, we've successfully trained everyone to use passwords that are hard for humans to remember, but easy for computers to guess." The comic above ...

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 ...

A delta wave, also known as delta rhythm, is the normal brainwave in the encephalogram of a person in deep, dreamless sleep, occurring with high voltage and low frequency (1 to 4 Hz). If you plan to ...

The circuit of Figure 1 generates sinusoids down to very low frequencies with distortion in the region of 3% or less, yet has no feedback or gain-stabilizing components because none are needed. It ...

Generate personalized comments across social platforms quickly and easily, enhancing online interactions for businesses and individuals. Easy Comment Generator is designed to enable users with quick, ...