Willett Kempton is an anthropologist. And an electrical engineer. On this winter morning at the University of Delaware, both skill sets come in handy as he courts two Japanese businessmen. They’ve traveled here from Tokyo to see how much progress he’s made toward a revolutionary idea: electric cars that will make several thousand dollars a year for their owners, and speed the switch to renewable energy sources. Observing Japanese business etiquette, Kempton presents his business card to the senior visitor, Makoto Horiguchi, then the two exchange bows. He repeats the ceremony with ... Read More