Inventions that Shook the World - Season 1 Episode 2 -

The decade saw The Great War, The Flu Epidemic and the Titanic disaster. Ten years into the 20th Century and the world is grappling with some serious growing pains. In a decade racked by conflict, there were inventions that made the world both safer and infinitely more dangerous.Featured inventions:ParachuteGas MaskToasterTommy GunSonar