Electromechanical 7-Segment Display Is High Contrast Brilliance
https://hackaday.com/2025/01/13/electromechanical-7-segment-display-is-high-contrast-brilliance/

The seven-segment display is most well known in LED form, but the concept isn’t tied to that format. You can build a seven-segment display out of moving parts, too. [tin-foil-hat] …read more (https://hackaday.com/2025/01/13/electromechanical-7-segment-display-is-high-contrast-brilliance/)

Fluid Simulation Pendant Teaches Lessons in Miniaturization
https://hackaday.com/2025/01/13/fluid-simulation-pendant-teaches-lessons-in-miniaturization/

Some projects seem to take on a life of their own. You get an idea, design and prototype it, finally build the thing and — it’s good, but it’s not …read more (https://hackaday.com/2025/01/13/fluid-simulation-pendant-teaches-lessons-in-miniaturization/)

Selectively Magnetizing an Anti-Ferromagnet With Terahertz Laser
https://hackaday.com/2025/01/13/selectively-magnetizing-an-anti-ferromagnet-with-terahertz-laser/

It’s a well-known fact that anti-ferromagnetic materials are called that way because they cannot be magnetized, not even in the presence of a very strong external magnetic field. The randomized …read more (https://hackaday.com/2025/01/13/selectively-magnetizing-an-anti-ferromagnet-with-terahertz-laser/)

Homebrew Retro Console Runs On PIC32
https://hackaday.com/2025/01/13/homebrew-retro-console-runs-on-pic32/

[Chad Burrow] decided to take on a noble task—building a “retro” style computer and video game console. Only, this one is built using somewhat modern hardware—relying on the grunt of …read more (https://hackaday.com/2025/01/13/homebrew-retro-console-runs-on-pic32/)

New Frontiers for Nissan Leaf Motor and Battery
https://hackaday.com/2025/01/14/new-frontiers-for-nissan-leaf-motor/

Nissan started off with a massive lead in the electric vehicle industry — their Leaf was the first mass-market EV available and the highest-selling EV until 2020. But the company …read more (https://hackaday.com/2025/01/14/new-frontiers-for-nissan-leaf-motor/)

It’s a Doughnut, In Hardware
https://hackaday.com/2025/01/14/its-a-doughnut-in-hardware/

Making a physical doughnut is easy enough, given a good dough recipe and a nice hot deep fat fryer. But have you ever considered making a one in physical electronic …read more (https://hackaday.com/2025/01/14/its-a-doughnut-in-hardware/)

The Many Leaning Towers of Santos, Brazil
https://hackaday.com/2025/01/14/the-many-leaning-towers-of-santos-brazil/