Hero's engine
Legendary characters used the power of mythology to fly through the heavens. About 100 BC a Greek inventor known as Hero of Alexandria came up with a new invention that depended more on the mechanical interaction of heat and water. He invented a rocket-like device called an aeolipile. It used steam for propulsion. Hero mounted a sphere on top of a water kettle. A fire below the kettle turned the water into steam, and the gas traveled through the pipes to the sphere. Two L-shaped tubes on opposite sides of the sphere allowed the gas to escape, and in doing so gave a thrust to the sphere that caused it to rotate.
Looks like the Greeks enjoyed a little homebrew hooch
Do you know if someone runs a space/astrophysics ping list?
I would like to be included if one already exists.
My father was a aerospace engineer from the fifties to the eighties and had a chance to work on a lot of different projects. I guess my interest in space and the cosmos came from him.
Reach for the stars!
Step Two:
Step Three: Profit.