Before the steam engine was widely used, land transportation mainly used animal power. People rode on horseback or in horse-drawn vehicles. For sea transportation, people relied on wind power to move sailing ships. The steam engine was invented many centuries before anyone figured out how to use it.
True. Before the invention of the steam engine, horses were a primary mode of transportation for carrying people and goods. They were used in carriages, wagons, and as mounts for riding.
yes.
Before the steam engine, the horse was a big with tranportaion for human whereas, the oxen carried heavy loads such as wood, post e.t.c Horses were still used a lot after the steam engine was invented
because the steam is very importance in main engine
Yes, of course.
This really depends on your understanding of the word engine. The Egyptians used various man powered machines (basic cranes etc) but a true engine will run without further human input once started. The main contender is obviously the steam engine which was used as transportation, powered lifting, steam hammers etc.
Probably the steam engine.
The main difference between a diesel and a steam engine is the diesel engine is an internal combustion and the steam engine is external combustion.
yes they came before steam engines
Mostly. Other common mode of transport was boats.
If by 'main' you mean largest then that would be the boiler.
Although it is usually said to be Thomas Newcomen, the history of the steam engine is complicated. Please see the link.