With the news here in Europe full of the effect of the war in Ukraine on gas supplies and consequently, prices, there it was on the radio news: a unit …read more (https://hackaday.com/2022/04/07/just-what-on-earth-is-a-therm/)

Inside an 11 Ton Clock with 1,000 Pieces
https://hackaday.com/2022/04/07/inside-an-11-ton-clock-with-1000-pieces/

We aren’t ashamed to admit it, but we like clocks. We’ve built quite a few and clock projects show up regularly in the pages of Hackaday. But there is one …read more (https://hackaday.com/2022/04/07/inside-an-11-ton-clock-with-1000-pieces/)

Remoticon 2021 // Rob Weinstein Builds an HP-35 from the Patent Up
https://hackaday.com/2022/04/07/remoticon-2021-rob-weinstein-builds-an-hp-35-from-the-patent-up/

from presentation slides
" data-image-caption="" data-medium-file="https://hackaday.com/wp-content/uploads/2022/04/hp35-feature.jpg?w=400" data-large-file="https://hackaday.com/wp-content/uploads/2022/04/hp35-feature.jpg?w=800">Fifty years ago, Hewlett-Packard introduced the first handheld scientific calculator, the HP-35. It was quite the engineering feat, since equivalent machines of the day were bulky desktop affairs, if not …read more (https://hackaday.com/2022/04/07/remoticon-2021-rob-weinstein-builds-an-hp-35-from-the-patent-up/)

OpenMower: Open Source Robotic Lawn Mower With RTK GPS
https://hackaday.com/2022/04/07/openmower-open-source-robotic-lawn-mower-with-rtk-gps/

https://www.youtube.com/watch?v=BSF04i3zNGw
" data-image-caption="" data-medium-file="https://hackaday.com/wp-content/uploads/2022/04/Snap-2022-04-06-at-07.24.42-featured.png?w=400" data-large-file="https://hackaday.com/wp-content/uploads/2022/04/Snap-2022-04-06-at-07.24.42-featured.png?w=800">Robotic mowers are becoming a common sight in some places, enabled by the cost of motors and the needed control electronics being much lower, thanks to the pace of modern …read more (https://hackaday.com/2022/04/07/openmower-open-source-robotic-lawn-mower-with-rtk-gps/)

Wireless Weather Station Gets Solar-Powered Supercap Upgrade
https://hackaday.com/2022/04/07/wireless-weather-station-gets-solar-powered-supercap-upgrade/

When [knight-of-ni] bought an Acurite Atlas weather station to replace his earlier 5-in-1 model, he was initally happy with its performance. However, after just ten months the batteries in the …read more (https://hackaday.com/2022/04/07/wireless-weather-station-gets-solar-powered-supercap-upgrade/)

Upcycled Nixie Clock Fit For A Friend
https://hackaday.com/2022/04/07/upcycled-nixie-clock-fit-for-a-friend/

Building a clock from parts is a right of passage for makers, and often represents a sensible introduction into the world of electronics. It’s also hard to beat the warm …read more (https://hackaday.com/2022/04/07/upcycled-nixie-clock-fit-for-a-friend/)

Stress-Testing An Arduino’s EEPROM
https://hackaday.com/2022/04/07/stress-testing-an-arduinos-eeprom/

Every time one of us flashes an Arduino’s internal memory, a nagging thought in the backs of our minds reminds us that, although everything in life is impermanent, nonvolatile re-writable …read more (https://hackaday.com/2022/04/07/stress-testing-an-arduinos-eeprom/)

Raspberry Pi Test Stand Tells You Which Glues to Use
https://hackaday.com/2022/04/07/raspberry-pi-test-stand-tells-you-which-glues-to-use/