Collaborate Disseminate
When we write about retrocomputers, we realize that back in the day, people knew all the details of their computer. You had to, really, if you wanted to get anything …read more Continue reading Videos Teach Bare Metal RP2040
A solder fume extractor is something we could probably all use. While there isn’t much to them, [Steven Bennett] put a lot of thought into making one that was better …read more Continue reading Power Tool Battery Fume Extractor
If you are manufacturing something, you have to test it. It wouldn’t do, for example, for your car to say it was going 60 MPH when it was really going …read more Continue reading Measuring a Millisecond Mechanically
In the 1950s, computers were, for the most part, ponderous machines. But one machine offered a glimpse of the future. The Volscan was probably the first real air traffic computer …read more Continue reading The First Gui? Volscan Controls the Air
If you want to see inside an integrated circuit (IC), you generally have to take the die out of the package, which can be technically challenging and often destroys the …read more Continue reading [Bunnie] Peeks Inside ICs with IR
[Rolinychupetin] insists that his recent video is not a lecture but actually a “recitation” about Bode plots. That may be, but it is still worth a watch if you want …read more Continue reading Bode Plot Un-Lecture
Is the Casio FX9000P a calculator or a computer? It’s hard to tell since Casio did make calculators that would run BASIC. [Menadue] didn’t know either, but since it had …read more Continue reading Pi Picos Give Casio FX9000P Its Memory Back
In the days before computers usually used off-the-shelf CPU chips, people who needed a CPU often used something called “bitslice.” The idea was to have a building block chip that …read more Continue reading Assembly Language 80’s Minicomputer Style
You know how you can feel when someone is looking at you? Thanks to a person detector, [Michael Rigsby’s] little robotic light switch also knows when you are looking at …read more Continue reading The Eyes Have It: Stare Down Your Lighting
[A. Cemal Ekin] over on PetaPixel reviewed the Apexel 200X LED Microscope Lens. The relatively inexpensive accessory promises to transform your cell phone camera into a microscope. Of course, lenses …read more Continue reading Your Phone is a 200X Microscope — Sort Of