Collaborate Disseminate
[Carolyn Barber] recently interviewed a 15-year-old who has been making Corsi-Rosenthal boxes for people in his community that are at risk for COVID. Not only is it great that a …read more Continue reading Open Source: Free as the Air You Breathe
If you are a Steely Dan fan, you might know the Donald Fagan song, “IGY.” In it, Fagan sings about a rosy future with high-speed undersea rail, solar power, giant …read more Continue reading IGY: The Year We All Got Along
If you haven’t noticed, diode laser engraver/cutters have been getting more powerful lately. [Cranktown City] was playing with an Atomstack 20 watt laser and wondered if it would sinter sand …read more Continue reading Glass 3D Printing via Laser
Do you know the name [George Devol]? Probably not. In 1961 he received a patent for “Programmed Article Transfer.” We’d call his invention the first robot arm, and its name …read more Continue reading Retrotechtacular: The Original Robot Arm
There was a time when street lighting means someone had to go light the lamps. Electricity changed that, but street and outdoor lighting has been quietly going through a new …read more Continue reading As Europe Goes to LEDs, Scientists Worry
In the “old” days, people were used to the idea that radio communication isn’t always perfect. AM radio had cracks and pops and if you had to make a call …read more Continue reading Solar Flare Quiets a Quarter of the Globe
A lot of people had a Radio Shack TRS-80 Model I. This was a “home computer” built into a keyboard that needed an external monitor or TV set. Later, Radio …read more Continue reading TRS-80 Model II Lives Again
[Mr. Carlson] has an old-style 1940-era radio tube tester, the kind that used to inhabit grocery and drug stores. It is in amazing condition and he was kind enough to …read more Continue reading Vintage Tube Tester Teardown
Biological systems often figure out the best ways to get what they need to survive. Now a robot created by researchers at Worcester Polytechnic Institute, Imperial College London, and the …read more Continue reading Robot: Will Draw for Food
Here’s a history quiz: What architecture did the first C++ compiler target? Of course, it is a trick question. The original C++ — known then as C with classes — …read more Continue reading C23 Programming for Everyone