For how crucial whales have been for humanity, from their harvest for meat and oil to their future use of saving the world from a space probe, humans knew very …read more (https://hackaday.com/2025/12/22/the-music-of-the-sea/)

Ask Hackaday: What Goes Into A Legible Font, And Why Does It Matter?
https://hackaday.com/2025/12/22/just-what-goes-into-a-legible-font-and-why-does-it-matter/

There’s an interesting cultural observation to be made as a writer based in Europe, that we like our sans-serif fonts, while our American friends seem to prefer a font with …read more (https://hackaday.com/2025/12/22/just-what-goes-into-a-legible-font-and-why-does-it-matter/)

Calibrating a Printer with Computer Vision and Precise Timing
https://hackaday.com/2025/12/22/calibrating-a-printer-with-computer-vision-and-precise-timing/

[Dennis] of [Made by Dennis] has been building a Voron 0 for fun and education, and since this apparently wasn’t enough of a challenge, decided to add a number of …read more (https://hackaday.com/2025/12/22/calibrating-a-printer-with-computer-vision-and-precise-timing/)

Christmas Ornament Has Hidden Compartment, Clever Design
https://hackaday.com/2025/12/22/christmas-ornament-has-hidden-compartment-clever-design/

If you need something clever for a gift, consider this two-part 3D-printed Christmas ornament that has a small secret compartment. But there’s a catch: the print is a challenging one. …read more (https://hackaday.com/2025/12/22/christmas-ornament-has-hidden-compartment-clever-design/)

High-Speed Pocket Hot Dog Cooker
https://hackaday.com/2025/12/22/high-speed-pocket-hot-dog-cooker/

Few of us complain that hot dogs take too long to cook, because we buy them from a stand. Still, if you do have to make your own dog, it …read more (https://hackaday.com/2025/12/22/high-speed-pocket-hot-dog-cooker/)

An HO Model Power Bogie For Not A Lot
https://hackaday.com/2025/12/22/an-ho-model-power-bogie-for-not-a-lot/

For people who build their own model trains there are a range of manufacturers from whom a power bogie containing the motor and drive can be sourced. But as [Le …read more (https://hackaday.com/2025/12/22/an-ho-model-power-bogie-for-not-a-lot/)

SigCore UC: An Open-Source Universal I/O Controller for the Raspberry Pi
https://hackaday.com/2025/12/22/sigcore-uc-an-open-source-universal-i-o-controller-for-the-raspberry-pi/

Recently, [Edward Schmitz] wrote in to let us know about his Hackaday.io project: SigCore UC: An Open-Source Universal I/O Controller With Relays, Analog I/O, and Modbus for the Raspberry Pi. …read more (https://hackaday.com/2025/12/22/sigcore-uc-an-open-source-universal-i-o-controller-for-the-raspberry-pi/)