Out on Maui, [rabbitcreek] desired to keep track of local ocean conditions. The easiest way to do that was by having something out there in the water to measure them. …read more (https://hackaday.com/2025/07/22/floating-buoy-measures-ocean-conditions/)

Paste Extrusion for 3D Printing Glass and Eggshells
https://hackaday.com/2025/07/22/paste-extrusion-for-3d-printing-glass-and-eggshells/

In contrast to the success of their molten-plastic cousins, paste extrusion 3D printers have never really attained much popularity. This is shame because, as the [Hand and Machine] research group …read more (https://hackaday.com/2025/07/22/paste-extrusion-for-3d-printing-glass-and-eggshells/)

Power Grid Stability: From Generators to Reactive Power
https://hackaday.com/2025/07/22/power-grid-stability-from-generators-to-reactive-power/

It hasn’t been that long since humans figured out how to create power grids that integrated multiple generators and consumers. Ever since AC won the battle of the currents, grid …read more (https://hackaday.com/2025/07/22/power-grid-stability-from-generators-to-reactive-power/)

USB-C-ing All The Things
https://hackaday.com/2025/07/22/usb-c-ing-all-the-things/

Wall warts. Plug mounted power supplies that turn mains voltage into low voltage DC on a barrel jack to power a piece of equipment. We’ve all got a load of …read more (https://hackaday.com/2025/07/22/usb-c-ing-all-the-things/)

The Epochalypse: It’s Y2K, But 38 Years Later
https://hackaday.com/2025/07/22/the-epochalypse-y2k-but-38-years-later/

Picture this: it’s January 19th, 2038, at exactly 03:14:07 UTC. Somewhere in a data center, a Unix system quietly ticks over its internal clock counter one more time. But instead …read more (https://hackaday.com/2025/07/22/the-epochalypse-y2k-but-38-years-later/)

2025 One-Hertz Challenge: Pokémon Alarm Clock Tells You It’s Time to Build the Very Best
https://hackaday.com/2025/07/22/2025-one-hertz-challenge-pokemon-alarm-clock-tells-you-its-time-to-build-the-very-best/

We’ve all felt the frustration of cheap consumer electronics — especially when they aren’t actually cheap. How many of us have said “Who designed this crap? I could do better …read more (https://hackaday.com/2025/07/22/2025-one-hertz-challenge-pokemon-alarm-clock-tells-you-its-time-to-build-the-very-best/)

2025 One Hertz Challenge: A 555, but not as we know it
https://hackaday.com/2025/07/22/2025-one-hertz-challenge-a-555-but-not-as-we-know-it/

We did explicitly ask for projects that use a 555 timer for the One Hertz Challenge, but we weren’t expecting the 555 to be the project. Yet, here we are, …read more (https://hackaday.com/2025/07/22/2025-one-hertz-challenge-a-555-but-not-as-we-know-it/)

Video Tape Hides Video Player
https://hackaday.com/2025/07/22/video-tape-hides-video-player/