There was a recent recall of so-called ‘radioactive shrimp’ that were potentially contaminated with cesium-137 (Cs-137). But contamination isn’t an all-or-nothing affair, so you ...

When Deluxe Paint came out with the original Amiga in 1985, it was the killer app for the platform. [Christopher Drum] starts ...

Why build a telescope? YOLO, as the kids say. Having decided that, one must decide what type of far-seer one will construct.

A new kind of ‘camera’ is poking at the invisible world of the human body – and it’s made from the same weird crystals that ...

Have you heard of the Sprengel pump? It’s how they drew hard vacuum back before mechanical pumps were perfected — the first light bulbs had their vacuums drawn with Sprengel pumps, for ...

A Meshtastic node has been one of the toys of the moment over the last year, and since they are popular with radio amateurs there’s a chance you’ll already live within range of at ...

Over a year ago, we took a look at importing a .step file of a KiCad PCB into FreeCAD, then placing a sketch and extruding it ...

A laptop is one of the greatest tools at the disposal of a hacker. They come in all manner of shapes and sizes with all manner of features. But perhaps the greatest limit held by all laptops is ...

Business cards, on the whole, haven’t changed significantly over the past 600-ish years, and arguably are not as important as ...

If you take the wheels off a FIAT Punto, you might just notice that those rims fit nicely on a rail. [AT Lab] did, and the resulting build makes for a very watchable video. Some of us have been ...

Since e-ink first hit the market a couple decades back, there’s always murmurs of “that’d be great as a second monitor”— but ...

Ever want to find your device on the map? Think we all do sometimes. The technology you’ll generally use for that is called ...