Want to know if somebody is lying? It’s always so hard to tell. [dbmaking] has whipped up a fun little polygraph, otherwise known as a lie detector. It’s nowhere near …read more (https://hackaday.com/2025/12/02/little-lie-detector-is-probably-no-worse-than-the-big-ones/)

Build Your Own Glasshole Detector
https://hackaday.com/2025/12/02/build-your-own-glasshole-detector/

Connected devices are ubiquitous in our era of wireless chips heavily relying on streaming data to someone else’s servers. This sentence might already start to sound dodgy, and it doesn’t …read more (https://hackaday.com/2025/12/02/build-your-own-glasshole-detector/)

Give Us One Manual For Normies, Another For Hackers
https://hackaday.com/2025/12/02/give-us-one-manual-for-normies-another-for-hackers/

We’ve all been there. You’ve found a beautiful piece of older hardware at the thrift store, and bought it for a song. You rush it home, eager to tinker, but …read more (https://hackaday.com/2025/12/02/give-us-one-manual-for-normies-another-for-hackers/)

A Stylish Moon And Tide Clock For The Mantlepiece
https://hackaday.com/2025/12/02/a-stylish-moon-and-tide-clock-for-the-mantlepiece/

Assuming you’re not stuck in a prison cell without windows, you could feasibly keep track of the moon and tides by walking outside and jotting things down in your notebook. …read more (https://hackaday.com/2025/12/02/a-stylish-moon-and-tide-clock-for-the-mantlepiece/)

How Cross-Channel Plumbing Fuelled The Allied March On Berlin
https://hackaday.com/2025/12/02/how-cross-channel-plumbing-fuelled-the-allied-march-on-berlin/

During World War II, as the Allies planned the invasion of Normandy, there was one major hurdle to overcome—logistics. In particular, planners needed to guarantee a solid supply of fuel …read more (https://hackaday.com/2025/12/02/how-cross-channel-plumbing-fuelled-the-allied-march-on-berlin/)

Retrotechtacular: Learning the Slide Rule the New Old Fashioned Way
https://hackaday.com/2025/12/02/retrotechtacular-learning-the-slide-rule-the-new-old-fashioned-way/

Learning something on YouTube seems kind of modern. But if you are watching a 1957 instructional film about slide rules, it also seems old-fashioned. But Encyclopædia Britannica has a complete …read more (https://hackaday.com/2025/12/02/retrotechtacular-learning-the-slide-rule-the-new-old-fashioned-way/)

LoRa Repeater Lasts 5 Years on PVC Pipe and D Cells
https://hackaday.com/2025/12/02/lora-repeater-lasts-5-years-on-pvc-pipe-and-d-cells/

Sometimes it makes sense to go with plain old batteries and off-the-shelf PVC pipe. That’s the thinking behind [Bertrand Selva]’s clever LoRaTube project. LoRa is a fantastic solution for long-range …read more (https://hackaday.com/2025/12/02/lora-repeater-lasts-5-years-on-pvc-pipe-and-d-cells/)

Retro Style VFO Has Single-Digit Parts Count
https://hackaday.com/2025/12/02/retro-style-vfo-has-single-digit-parts-count/