Guitar pedals are designed to take in a sound signal, do fun stuff to it, and then spit it out to your amplifier where it hopefully impresses other people. However, …read more (https://hackaday.com/2026/03/04/running-video-through-a-guitar-effects-pedal/)

Using a Solid-State Elastocaloric Cooler to Freeze Water
https://hackaday.com/2026/03/05/using-a-solid-state-elastocaloric-cooler-to-freeze-water/

Elastocaloric materials are a class of materials that exhibit a big change in temperature when exposed to mechanical stress. This could potentially make them useful as solid-state replacement for both …read more (https://hackaday.com/2026/03/05/using-a-solid-state-elastocaloric-cooler-to-freeze-water/)