Chicago Innovations That Changed the World-- Part 8: Nuclear Reactor

7. First Gay Rights Group in U.S. (1924). Henry Gerber established the Society for Human Rights. //// 6. Mass-producing the McCormick Reaper (1848) //// 5. Ballon Frame Construction (1833) Augustine Taylor using boards and nails for construction. //// 4. Open-Heart Surgery (1893). Patient was James Cornish. Doctor was Daniel Hale Williams. //// 3. The Cell Phone (1973) Martin Cooper from IIT, innovator at Motorola. //// 2. Skyscraper (1884) The Home Insurance Building. //// 1. The Nuclear Reactor (1942). //// Some Big Stuff. Some Stretches. --Cooter