I think you're a little off on the 100 years bit. 30 years maybe. The first jet was the German Heinkel He 178 built in 1939. First jet airliner wasn't until 1

I think you're a little off on the 100 years bit. 30 years maybe. The first jet was the German Heinkel He 178 built in 1939. First jet airliner wasn't until 1952. First high speed train was 1962. If you bought a car 100 years ago, the wheels would come with wooden spokes, it had 2 speeds and a reverse. There was a transmission brake but no brakes on the wheels. No clutch. You had to crank the engine by hand to start it.