An article on cooking efficiency from Low Tech Magazine and their study on thermal efficiency of different methods of cooking. Rocket stoves are mentioned and rank very high in both thermal efficiency and decreased water boiling time compared to other methods of cooking.
Yeah, that quote was one of my favorites too. I have taken undergraduate and graduate thermodynamic classes and I see so many insane uses of energy it hurts.
Four score and seven years ago, our forefathers brought forth this tiny ad:
try a month in the "gardening gardeners" program to see if it soothes your soul