Sunny this morning, was going to go out but then it hailed! So I stayed home.
Had a friend with a Wankel engine Sukuki back in the day. As I recall it packed a punch for a small engine power to weight ratio and all that) plus made for a really smooth ride. I’m surprised they never caught on, actually.
I tried to find some video of a jet/rocket powered lawn mower, but though there were lots of mowers with a jet/rocket moving them along, none of them appeared to actually cut any grass. Now you might call me ‘fussy’, but . . .