Wastewater sampling has become a popular way over the years to keep track of the health of a population, including human ones ...

Commodity bearings are a a boon for makers who to want something to rotate smoothly, but what if you don’t have one in a ...

What color are the street lights in your town? While an unfortunate few still suffer under one of the awful colors offered by ...

This week Jonathan Bennett and and Dan Lynch chat with Anthony Annunziata about Open Source AI and the AI Alliance. We get ...

If you’re looking for an intriguing aerial project, [DilshoD] has you covered with his unique twist on modular airships. The ...

Orbital mechanics is a fun subject, as it involves a lot of seemingly empty space that’s nevertheless full of very real forces, all of which must be taken into account lest one’s ...

Remember Duracell’s PowerCheck? The idea was that a strip built into the battery would show if the battery was good or not. Sure, you could always get a meter or a dedicated battery tester ...

The Braun TS2 radio was a state-of-the art tube set in 1956. Today it still looks great, but unsurprisingly, the one that [Manuel Caldeier] has needed a little tender loving care. The table radio ...

Plastics are unfortunately so cheap useful that they’ve ended up everywhere. They’re filling our landfills, polluting our ...

What have you missed on Hackaday this week? Elliot Williams and Al Williams compare notes on their favorites from the week, ...

Most of us have made paper airplanes at one time or another, but rather than stopping at folded paper, [VirgileC] graduated ...

It’s pretty easy to take a balloon, fill it up with helium, and send it up in to the upper atmosphere. It’s much harder to ...