Filmmaker Roger Summerhayes describes the career of industrial scientist Irving Langmuir in this video - a researcher at the General Electric Research Laboratory who developed the gas-filled light bulb, atomic hydrogen welding, the octet theory of atomic structure, surface films, smoke screens, cloud seeding and weather control - besides flying with Lindbergh, skiing and supporting environmental causes. Author Kurt Vonnegut also explains Langmuir’s influence on his novel "Cat’s Cradle" .