Inventions and Discoveries of the Twentieth Century x To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video League of Nations Successes Inventors 1900 to 1999 Atomic Power Computers Helicopters and Igor Sikorsky The Internet The Jet Engine Robert Goddard The Personal Computer Plastic John Logie Baird and Television Flight and the Wright Brothers Inventions 1900 to 1990
