1+ day, 11+ hour ago   (212+ words) Hackaday Clocks are almost the ideal devices to inspire creativity in hackers — they have a simple, well-defined task, but there’s an almost unlimited number of ways to carry it out [ekaggrat singh kalsi]’s OVODYO is a…...

2+ day, 12+ hour ago   (32+ words) Launched in 1976, LAGEOS-1 (LAser GEOdynamic Satellite) is unusual in that it contains no instrumentation, no electronics, no power supply, and no means of propulsion. It's spherical, weighs just unde......

4+ day, 12+ hour ago   (236+ words) Hackaday There are plenty of ways to capture 3D images or simulations of such if you know what you’re doing with camera hardware and fancy mathematics However, a little more unusual is the idea of capturing a 3D image while using…...

4+ day, 21+ hour ago   (37+ words) You can 3D print all kinds of things, from Yoda heads to little models of Pikachu. Eventually, though, most of us get to a point where we want to print something a little more interesting. The lenticu......

5+ day, 21+ hour ago   (32+ words) [lcamtuf] has an in-depth look at the concept of negative resistance that goes somewhat further than one might expect. Normally, as voltage across a resistance increases so too does the current. Negat......

1+ week, 1+ day ago   (32+ words) Resin 3D printing has opened up a whole new scale of resolution for hackers, but the technology can go still finer; commercial micro-SLA and two-photon polymerization printers can print items with s......

1+ week, 4+ day ago   (1035+ words) Over the time Hackaday has been in existence, the art of 3D printing has evolved from a relatively crude hit-and-miss affair to something approaching what we all imagined back then. You can't yet walk......

1+ week, 6+ day ago   (39+ words) If you've heard the high-pitched whine or buzz from an electronic device when a current-carrying inductor is vibrating, you'll know how unpleasant it can be. It's common in all kinds of equipment, but......

2+ week, 5+ hour ago   (38+ words) If you tear into old TVs or recording equipment, you may see shields made from some exotic-looking metal. Old timers will tell you it's called mu metal, and its purpose is to -- sort of -- shield thin......

2+ week, 2+ day ago   (322+ words) Hackaday A piano’s internal mechanism for translating a key press into sound is surprisingly complicated It has to do a lot of things simultaneously and quickly: provide precise control over velocity, ensure the hammer doesn’t press itself against…...