I'm reading Bill Bryson's A Short History of Nearly Everything and just finished a part including the excellent discussion of atmospheric science. In it, Bryson mentions George Hadley, for whom the "Hadley cell" -- a large-scale circulation in which air rises along the equator and descends in the subtropics -- is named. It turns out that Hadley was a lawyer and amateur meteorologist as well.

I may be biased, but to me, law and meteorology fit well together. Both involve sizing up complex systems with a high number of variables and (especially in today's era of computer models) distinguishing among precedential indicators to extrapolate into the future. Hadley probably would have had a field day with National Weather Service forecast discussions (here's the latest one from the NYC office), which to me have a resemblance to judicial opinions in the way factors are weighed, authorities are measured, and an argument is set forth, in the form of a weather prediction.