PEM electrolysis needs iridium, platinum, and expensive membranes. I designed an alkaline system that needs none of them — and absorbs heat instead of rejecting it.

English is not my first language, so if my phrasing sounds a little off here and there, I hope you'll bear with me. Just focus on the content — that's what matters. "I originally posted this in r/MechanicalEngineering, where I've been documenting a non-involute gear project (47K views and counting)