What’s round, has what looks like a vacuum tube in the center, and was made in the 1950s by HP? We don’t know either, but [The Signal Path] restored one …read more (https://hackaday.com/2021/10/22/mystery-hp-gear-teardown/)

Hackaday Podcast 141: LowFER Badges, Outrun Clocks, Dichroic Lamps, and Piano Action
https://hackaday.com/2021/10/22/hackaday-podcast-141-lowfer-badges-outrun-clocks-dichroic-lamps-and-piano-action/

Hackaday editors Mike and Elliot Williams catch up on a week’s worth of hacks. It turns out there are several strange radio bands that don’t require a license, and we …read more (https://hackaday.com/2021/10/22/hackaday-podcast-141-lowfer-badges-outrun-clocks-dichroic-lamps-and-piano-action/)

Retrotechtacular: This 15th-Century Siege Cannon Might Kill You Instead Of The Target
https://hackaday.com/2021/10/22/retrotechtacular-this-15th-century-siege-cannon-might-kill-you-instead-of-the-target/

For a happy weekend away in early September, I joined a few of my continental friends for the NewLine event organised by Hackerspace Gent in Belgium. You may have seen …read more (https://hackaday.com/2021/10/22/retrotechtacular-this-15th-century-siege-cannon-might-kill-you-instead-of-the-target/)

Testing 3D Printed Cutting Blades Is Scary Work
https://hackaday.com/2021/10/22/testing-3d-printed-cutting-blades-is-scary-work/

[Ivan Miranda] comes from a land where the shops close on Sundays. Thus, when he found himself in need of a cutting blade, he realised he would have to build …read more (https://hackaday.com/2021/10/22/testing-3d-printed-cutting-blades-is-scary-work/)

Vizio In Hot Water Over Smart TV GPL Violations
https://hackaday.com/2021/10/22/vizio-in-hot-water-over-smart-tv-gpl-violations/

As most anyone in this community knows, there’s an excellent chance that any consumer product on the market that’s advertised as “smart” these days probably has some form of Linux …read more (https://hackaday.com/2021/10/22/vizio-in-hot-water-over-smart-tv-gpl-violations/)

3D Printer Cuts Metal
https://hackaday.com/2021/10/22/3d-printer-cuts-metal/

Every now and then we’ll see a 3D printer that can print an entire house out of concrete or print an entire rocket out of metal. But usually, for our …read more (https://hackaday.com/2021/10/22/3d-printer-cuts-metal/)

Supply Chain Attack: NPM Library Used By Facebook And Others Was Compromised
https://hackaday.com/2021/10/22/supply-chain-attack-npm-library-used-by-facebook-and-others-was-compromised/

Here at Hackaday we love the good kinds of hacks, but now and then we need to bring up a less good kind. Today it was learned that the NPM package ua-parser-js …read more (https://hackaday.com/2021/10/22/supply-chain-attack-npm-library-used-by-facebook-and-others-was-compromised/)