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Author Archives: Al Williams

Open Source: Free as the Air You Breathe

Posted on September 20, 2022 by Al Williams

[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→

Posted in air filter, News

IGY: The Year We All Got Along

Posted on September 20, 2022 by Al Williams

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→

Posted in antarctica, arctic, discovery, Featured, history, IGY, Interest, Original Art, Science | Tagged Satellite, Van Allen Belts

Glass 3D Printing via Laser

Posted on September 20, 2022 by Al Williams

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→

Posted in 3d Printer hacks, 3D Printing, laser, laser hacks, sls printing | Tagged Glass

Retrotechtacular: The Original Robot Arm

Posted on September 19, 2022 by Al Williams

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→

Posted in Hackaday Columns, Retrotechtacular, robots hacks

As Europe Goes to LEDs, Scientists Worry

Posted on September 19, 2022 by Al Williams

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→

Posted in climate, Europe, hps, led, led hacks, light wavelength, lps, Science, sodium lighting

Solar Flare Quiets a Quarter of the Globe

Posted on September 18, 2022 by Al Williams

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→

Posted in News, Solar Flare, solar hacks, Space

TRS-80 Model II Lives Again

Posted on September 18, 2022 by Al Williams

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→

Posted in repair hacks, retrocomputing, trs-80, vintage, vintage computer, z80

Vintage Tube Tester Teardown

Posted on September 16, 2022 by Al Williams

[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→

Posted in radio tube, teardown, tube, tube tester

Robot: Will Draw for Food

Posted on September 15, 2022 by Al Williams

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→

Posted in conductive ink, robot, robots hacks

C23 Programming for Everyone

Posted on September 14, 2022 by Al Williams

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→

Posted in C, C23, software development

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