Electromechanical circuits using relays are mostly a lost art these days, but sometimes you get people like [Aart] who can’t resist to turn a stack of clackity-clack relays into a …read more (https://hackaday.com/2024/02/13/a-clock-made-out-of-electromechanical-relays/)

Memory Box Shows Photos Based On Fingerprint
https://hackaday.com/2024/02/13/memory-box-shows-photos-based-on-fingerprint/

With his young son’s birthday coming up in a few weeks, [Mike Buss] wanted to build him something fun that the boy could hold on to all his life. After …read more (https://hackaday.com/2024/02/13/memory-box-shows-photos-based-on-fingerprint/)

Tool Changing? Bah! Just Add a Second Gantry
https://hackaday.com/2024/02/13/tool-changing-bah-just-add-a-second-gantry/

What’s a dual gantry 3D printer? It’s a machine with two completely independent XY motion systems, with two independent hot ends, sharing the same build platform. That might be a …read more (https://hackaday.com/2024/02/13/tool-changing-bah-just-add-a-second-gantry/)

Writing – So Easy a Caveperson Could Do It
https://hackaday.com/2024/02/13/writing-so-easy-a-caveperson-could-do-it/

We modern humans tend to take writing for granted, and often forget that like any other technology, somebody had to invent it. Researchers from Cambridge believe they’ve determined the purpose …read more (https://hackaday.com/2024/02/13/writing-so-easy-a-caveperson-could-do-it/)

Thermal Earring Tracks Body Temperature
https://hackaday.com/2024/02/13/thermal-earring-tracks-body-temperature/

If you want to constantly measure body temperature to track things like ovulation, you usually have to wear something around your wrist or finger in the form of a smartwatch …read more (https://hackaday.com/2024/02/13/thermal-earring-tracks-body-temperature/)

AI-Powered Bumper Sticker Provides Context-Sensitive Urban Camouflage
https://hackaday.com/2024/02/14/ai-powered-bumper-sticker-provides-context-sensitive-urban-camouflage/

While we absolutely support the right of everyone to express their opinions, it seems to us that it’s rarely wise to turn your vehicle into a mobile billboard for your …read more (https://hackaday.com/2024/02/14/ai-powered-bumper-sticker-provides-context-sensitive-urban-camouflage/)

Apple Pushes Back on Right To Repair Bill Due to Parts Pairing
https://hackaday.com/2024/02/14/apple-pushes-back-on-right-to-repair-bill-due-to-parts-pairing/

After previously supporting one in California, Apple has made an about-face and is now pushing back against a “Right to Repair” bill (Senate Bill 1596) currently under consideration in Oregon. …read more (https://hackaday.com/2024/02/14/apple-pushes-back-on-right-to-repair-bill-due-to-parts-pairing/)

Parts We Miss: The Mains Transformer
https://hackaday.com/2024/02/14/parts-we-miss-the-mains-transformer/