Collaborate Disseminate
It is a common grade school experiment to wind some wire around a screw, power it up, and watch it pick up paper clips or other ferrous materials. It is …read more Continue reading Sort of Electromagnet Attracts Copper, Aluminum
Want to see cosmic rays? You might need a lot of expensive exotic gear. Nah. [The ActionLab] shows how a cup of coffee or cocoa can show you cosmic rays …read more Continue reading Cosmic Ray Detection at Starbucks?
[Dave] wanted an old pickup, and he found a GMC Sierra Grande truck vintage 1970. While it had an unusual amount of options, there weren’t that many high-tech options over …read more Continue reading Trick Your (1970) Pickup Truck
Solid state electronics have provided lighter weight night vision units that work better than the old-fashioned gear that used photomultiplier tubes, but there was an even older technology as [Our …read more Continue reading Night Vision the Old Way
These days, the bar for home-built projects is high. With 3D printers, CNC, and cheap service providers, you can’t get away with building circuits in a shoe box or an …read more Continue reading Are Minimills Worth It?
[Sean Haas] is a “dangerous freelance historian,” and his recent talk at the Vintage Computer Festival in Southern California covers the cryotron — a strange detour on the road to …read more Continue reading The Cryotron Remembered
In 1987, your portable Osborne computer had a problem. Who you gonna call? Well, maybe the company that made “The Osborne Survival Kit,” a video from Witt Services acquired by …read more Continue reading Retrotechtacular: Right to Repair 1987
[Oscar] is no stranger to writing hard-to-read C code. While most of us do that by accident, there are those who strive to write the most unreadable code and enter …read more Continue reading Obfuscated C 8080 Emulator Ported
[Oscar] is no stranger to writing hard-to-read C code. While most of us do that by accident, there are those who strive to write the most unreadable code and enter …read more Continue reading Obfuscated C 8080 Emulator Ported
There was a time when test equipment was big and heavy. Those days are gone, and [Kiss Analog] shows us the inside of a Uni-T UTG962E arbitrary waveform generator. The …read more Continue reading Tiny Signal Generator Revealed