yes
People don't have to walk a lot and people do not have to use animals.
no
it changed the way we think on what to do
tesla
Well, I would say the gun, with the car or aeroplane a very close second. The wheel and fire.
It changed the American diet.
it changed in 1798
computer, television, telephone , internet, light bulb, post, car, bicycle, paper, electricity, aeroplane.
Aryabhatta who invented 0(Zero) changed the world of mathematics
it changed the way of transportion and made the earth more poluted
computer, tv, car, internet