>> In metric, one milliliter of water occupies one cubic centimeter, weighs one gram, and requires one calorie of energy to heat up by one degree centigrade—which is 1 percent of the difference between its freezing point and its boiling point. An amount of hydrogen weighing the same amount has exactly one mole of atoms in it. >> Whereas in the American system, the answer to "How much energy does it take to boil a room-temperature gallon of water?" is "Go fuck yourself," because you can't directly relate any of those quantities. [86] > A crime novel does not need 35 pages of research source notes, which themselves are annotated. Josh Bazell - Wild Thing