Three or so different aircraft pilot developments explained. Mostly fuel cell.
https://arstechnica.com/science/2023/08/hydrogen-powered-planes-almost-ready-for-takeoff/
Electronics & Stuff, a lot about LEDs
Three or so different aircraft pilot developments explained. Mostly fuel cell.
https://arstechnica.com/science/2023/08/hydrogen-powered-planes-almost-ready-for-takeoff/