Inventions That Shook the World S1, E5

Go on a decade-by-decade voyage of discovery through life-changing inventions, like the radio that made the world smaller, the machine gun that made it more dangerous, or the parking meter that made it more expensive.

Cast:Steve Herringer , Mark DeNicola , Christopher O'Neill , Katie Uhlmann , Jennifer De Lucia , Chris Hadfield , Paul Giurgeu , Brian Scott Carleton , David Emanuel Faria , James Fanizza , Ted Powers , Matthew Galliford , Tim Crouch , Ron Basch , Shane Harbinson , Adam Bradley , Andy Malone , Rick Cordeiro