Collaborate Disseminate
Designing a circuit is a lot easier on paper, where components have well-defined values, or lacking that, at least well-defined tolerances. Unfortunately, even keeping percentage tolerances in mind isn’t always …read more Continue reading Coping with Disappearing Capacitance in a Buck Converter
Despite being a readily-available source of useful plastic, massive numbers of disposable bottles go to waste every day. To remedy this problem (or take advantage of this situation, depending on …read more Continue reading Turning Waste Plastic into Spools of Filament
Humans have long admired the sound of birdsong, but to fully appreciate how technically amazing it is, you need an ultrasonic microphone. [Benn Jordan] recently created a video about using …read more Continue reading AVIF: The Avian Image Format
From the outside, iron meteorites tend to look like formless, rusted lumps of metal, which is why museums often polish and etch sections to show their interior structure. This reveals …read more Continue reading Casting Meteorite-like Materials
Most research on electroplating tries to find ways to make it plate parts more uniformly. [Ajc150] took the opposite direction, though, with his selective electroplating project, which uses an electrode …read more Continue reading Painting in Metal with Selective Electroplating
The flow battery is one of the more interesting ideas for grid energy storage – after all, how many batteries combine electron current with fluid current? If you’re interested in …read more Continue reading An Open Source Flow Battery
Although Charles Hall conducted his first successful run of the Hall-Héroult aluminium smelting process in the woodshed behind his house, it has ever since remained mostly out of reach of …read more Continue reading The Hall-Héroult Process on a Home Scale
In contrast to the success of their molten-plastic cousins, paste extrusion 3D printers have never really attained much popularity. This is shame because, as the [Hand and Machine] research group …read more Continue reading Paste Extrusion for 3D Printing Glass and Eggshells
The human eye’s color perception is notoriously variable (see, for example, the famous dress), which makes it difficult to standardize colours. This is where spectrophotometers come in: they measure colours …read more Continue reading A Spectrophotometer Jailbreak to Resolve Colorful Disputes
The old saying that the best way to learn is by doing holds as true for penetration testing as for anything else, which is why intentionally vulnerable systems like the …read more Continue reading A Vulnerable Simulator for Drone Penetration Testing