Liquid piston engine (basically an inverted rotary/wankel) can run on hydrogen, also fuel cells, checkmate. Not even going to click the link. Is research even a

Liquid piston engine (basically an inverted rotary/wankel) can run on hydrogen, also fuel cells, checkmate. Not even going to click the link. Is research even a thing anymore? Petrol is the cult, you've got the whole headline backwards!