While the polygraph is colloquially associated with pseudoscientific lie detector tests, the actual invention of the first polygraph was designed to mechanically duplicate the pen strokes of someone writing. Famously, …read more (https://hackaday.com/2022/10/19/a-3d-printer-with-quadruple-the-output/)

Rubber Stamping Your Way To Custom PCBs
https://hackaday.com/2022/10/19/rubber-stamping-your-way-to-custom-pcbs/

Many of us now outsource PCB production to board houses overseas, which offer high-quality boards with increasingly-impressive turnaround times. [Shri Hari Ram] still likes to brew up their own PCBs, …read more (https://hackaday.com/2022/10/19/rubber-stamping-your-way-to-custom-pcbs/)

Permeability Tuned Oscillators Made Stable With a Glue Stick
https://hackaday.com/2022/10/19/permeability-tuned-oscillators-made-stable-with-a-glue-stick/

For over a century now, radio amateurs have made tuned circuits using a coil of wire and a variable capacitor. In recent decades the supply of variable capacitors has dwindled, …read more (https://hackaday.com/2022/10/19/permeability-tuned-oscillators-made-stable-with-a-glue-stick/)

Catch the Stick Game Is a Tidy Build
https://hackaday.com/2022/10/20/catch-the-stick-game-is-a-tidy-build/

There are many different ways to test one’s reaction times; a simple way is to simply drop a ruler and see how far it falls before you can catch it. …read more (https://hackaday.com/2022/10/20/catch-the-stick-game-is-a-tidy-build/)

Render Yourself Invisible to AI with This Adversarial Sweater of Doom
https://hackaday.com/2022/10/20/render-yourself-invisible-to-ai-with-this-adversarial-sweater-of-doom/

Ugly sweater season is rapidly approaching, at least here in the Northern Hemisphere. We’ve always been a bit baffled by the tradition of paying top dollar for a loud, obnoxious …read more (https://hackaday.com/2022/10/20/render-yourself-invisible-to-ai-with-this-adversarial-sweater-of-doom/)

Retrotechtacular: The Original Weather Channel
https://hackaday.com/2022/10/20/retrotechtacular-the-original-weather-channel/

The Weather Channel has decided to pull the plug on its automated weather display, a favorite experience for weather geeks everywhere. However, it wasn’t the original weather nerd TV station.  …read more (https://hackaday.com/2022/10/20/retrotechtacular-the-original-weather-channel/)

Forearm Muscle Contraction Sensor Is Useful Component For Open Source Prosthetics
https://hackaday.com/2022/10/20/forearm-muscle-contraction-sensor-is-useful-component-for-open-source-prosthetics/

Being able to actuate parts of a prosthetic limb can make it much more useful. To help in this goal for partial arm or hand amputees, [TURFPTAx] has developed a …read more (https://hackaday.com/2022/10/20/forearm-muscle-contraction-sensor-is-useful-component-for-open-source-prosthetics/)

2022 Hackaday Supercon: Final Talks Announced
https://hackaday.com/2022/10/20/2022-hackaday-supercon-final-talks-announced/