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2026 Frikkin Lasers Contest: Glow Engine is like an Open Air Slow Scan CRT

Slow-scan CRTs were never exactly common compared to their faster cousins, but given the popularity of Slow Scan TV (SSTV) amongst hams and NASA broadcasts, man…

The Adder at the Heart of Intel’s 8087 FPU

As simple as the concept of adding two numbers appears at first glance, doing it in the 1970s in Intel’s 8087 FPU with its 69-bit adder was still a tall o…

A Brief History of Unix Commands On Windows: CoreUtils (Again)

If you use Windows today and type ls, cat, grep, or awk in a terminal, there is a good chance something useful will happen. That was not always true. For most o…

Honda Civics and Installing Software With Android Test Keys

As more and more of the ‘smart’ infotainment systems in cars begin to age out of support, it becomes increasingly more relevant to figure out how to…

Bike-Powered Shredder Makes Short Work of 3D Printer Waste

[Brogan M Pratt] and his students do a lot of 3D printing, and as such found themselves producing a lot of plastic waste. Seeing an opportunity, they built a bi…

Learning About Ground Loop Isolators thanks to a Scam Product

When [Denki Otaku] bought a ¥1,200 (roughly €6.5) XLR ground loop isolator off Japanese Amazon, he initially didn’t suspect that anything was off. Since t…

This Alarm Clock Has The Capacity To Wake You

Every now and then a project comes into the Hackaday feed that has so many levels of wrong about it that you really shouldn’t do it at home, but is amusin…

Building a Ceiling-Based Crane Robot to Keep a Room Clean

One of the joys you get to experience whether as a proud parent or pet owner is that a lot of things get left around haphazardly. You could of course pick every…

Ergonomic Mouse Gives Each Fingertip Its Own Saddle

Want to make your own ergonomic mouse but don’t know where to start? Why not try [psudoku]’s Kotinos design? It’s a scaffold-like fingertip sh…

Custer’s Revenge: eVTOL Drone Brings Back Channel Wings

You have to be a pretty big aviation nerd to know about [Willard Ray Custer] and his channel wing concept, but if you are, you’ll be giddy to hear about t…