See It • Build It • Know It
Mario emigrated to New York from his native Italy in 1939 after completing two doctoratal degrees, one in civil engineering and a second in pure mathematics. He first worked as a time-and-motion engineer at Lionel Trains. In 1940 he joined the faculty at Columbia University, retiring in 1990 as the James Renwick Professor of Civil Engineering and a Professor of Architecture. He was a founding partner of Weidlinger Associates, a structural engineering firm where he directed many major projects.
Mario wrote many influential textbooks, as well as books for the general public, including Why Buildings Stand Up and Why Buildings Fall Down. Both continue to be bookstore best-sellers.