““Professor J. B. S. Haldane was one of the most celebrated scientists in Britain. A pioneering and broad-ranging thinker, he developed a mathematical theory of population genetics, predicted that hydrogen-producing windmills would replace fossil fuel, explained nuclear fission, and suffered a perforated eardrum while testing a homemade decompression chamber: “Although one is somewhat deaf,” he wrote, “one can blow tobacco smoke out of the ear in question, which is a social accomplishment.””