the modern steam engine works like this. A steam engine is a heat engine that performs mechanical work using steam as its working fluid. The steam engine uses the force produced by steam pressure to push a piston back and forth inside a cylinder. This pushing force is transformed, by a connecting rod and flywheel, into rotational force for work. The anceint greek one worked like this He called it an aeolipile, or "wind ball". His design was a sealed caldron of water was placed over a heat source. As the water boiled, steam rose into the pipes and into the hollow sphere. The steam escaped from two bent outlet tubes on the ball, resulting in rotation of the ball.
The Marshall Plan, first proposed in 1947 and enacted in 1948, was a U.S. program established to attract European countries into aligning with the United States and halt the spread of communism.
there's no specific mention of the national Bank in the Constitution but it does say that the Congress can do what's necessary and proper to do its job.
Not so sure about the shape . i do know however its a cold and a warm front spinning around and around maybe that might answer depending on the question
