Although solar panels may seem like a kind of magic, they’re really quite simple devices, in their silicon form featuring nothing but the p-type silicon wafer and an n-type layer …read more (https://hackaday.com/2026/10/19/making-photovoltaic-solar-cells-with-a-microwave/)

Birduino Plays Bird Calls on Demand with NFC-enabled Cards
https://hackaday.com/2026/10/19/birduino-plays-bird-calls-on-demand-with-nfc-enabled-cards/

All [Hannah Robertson]’s Birduino needs is for one to tap an NFC-enabled card to the reader, and the device plays one of the vocalizations associated with the bird shown on …read more (https://hackaday.com/2026/10/19/birduino-plays-bird-calls-on-demand-with-nfc-enabled-cards/)

Visualize Regular Expressions with Marbles
https://hackaday.com/2026/10/20/visualize-regular-expressions-with-marbles/

If you are one of those people who visualize things physically better than in the abstract, then Regex Marble Run by [bottomless] might be for you. You enter a test …read more (https://hackaday.com/2026/10/20/visualize-regular-expressions-with-marbles/)

Super Mario Galaxy Now Runs on the GBA
https://hackaday.com/2026/10/20/super-mario-galaxy-now-runs-on-the-gba/

Joining the ranks of fresh backported Nintendo games is Super Mario Galaxy for the Nintendo Game Boy Advance (GBA), courtesy of [Tobias Friedly], AKA [Tobi]. In a recent video he announces …read more (https://hackaday.com/2026/10/20/super-mario-galaxy-now-runs-on-the-gba/)

Spreading Life to Bleached Coral
https://hackaday.com/2026/10/20/spreading-life-to-bleached-coral/

Coral bleaching is a major problem for ocean ecosystems as the ocean gets warmer. Researchers at Stanford have found a new method for regenerating bleached corals. Scientists working on coral …read more (https://hackaday.com/2026/10/20/spreading-life-to-bleached-coral/)

NASA’s Lunar Grounding Challenge is a Real Buzz
https://hackaday.com/2026/10/20/nasas-lunar-grounding-challenge-is-a-real-buzz/

One could make a joke about how an astronaut walking on the lunar surface is rather akin to a cat walking on the carpet in the living room, but out …read more (https://hackaday.com/2026/10/20/nasas-lunar-grounding-challenge-is-a-real-buzz/)

Going Whole-Hog on a First Satellite Ground Station
https://hackaday.com/2026/10/20/going-whole-hog-on-a-first-satellite-ground-station/

When most radio enthusiasts start trying to pick up signals from satellites, they might put together a quick-and-dirty Yagi antenna and try to catch a repeater as is passes overhead, …read more (https://hackaday.com/2026/10/20/going-whole-hog-on-a-first-satellite-ground-station/)

Lazarus and the Free Pascal Compiler Gain Dynamic Package Support
https://hackaday.com/2026/10/20/lazarus-and-the-free-pascal-compiler-gain-dynamic-package-support/