sour of power
Before enignes were invented nature was the only source of power available.
Animals pulled carts,and the wind and running water moved windmills and water wheels. water, wind and animal powerare still important today
However, engines are an important source of power. Cars, trucks, trains, aircraft and ships all have their own special engines to power them along
The first steammachine was made before AD100 by a Greek engineer,called Hero.it spun ronnd.lt spun round as steam shot out of the pipes
Over 2,000years ago the Ancient Greeks were using water wheels for grinding flour. water was the main source of power for industry Until steam engines were invented