Dude, wake up. It's like this. It's all a matter of opinion. Plain and simple. You have yours and I have mine.
I can back mine up just as much as you can yours. It's that simple.
It is NOT a matter of opinion. Facts are facts and you don't get to have an opinion about them, they're just facts. And not understanding the facts is not grounds for having an opinion about them. If you decide to hold an opinion in opposition of the facts you're just
wrong.
I also never said that motors had to be electric (they don't), I just said engines use combustion. I should be a little more careful, because engines use a combustion
cycle and have generally have moving parts to control those cycles
.
The space shuttle is a great example of this. The launch vehicle was made up of the shuttle, the external tank, and the solid rocket boosters. This is where it gets entertaining. The shuttle is powered by 3 main
engines. The solid rocket boosters (srb's) are powered by solid rocket
motors. Uh-huh. The shuttle was not powered by motors, and the rockets were not powered by engines, and it is not correct to refer to one as the other. The shuttle engines used a combustion cycle to produce thrust, they had a couple of stages of combustion as well as pumps and turbines, they're a
really complicated affair.
NASA - Space Shuttle Main Engines The solid rocket motors convert a chemical reaction directly to thrust, there's no internal moving parts. No pre or post stages, no turbines, just a chamber and a nozzle, energy straight to motion in one shot.
NASA - Solid Rocket Boosters.
It's an important distinction, and it makes a difference to people that actually do the work of designing engines and motors.