On the above link AC Karen Fisher states : Heron, the great inventor of Alexandria, described in detail what is thought to be the first working steam engine. 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 principle he used in his design is similar to that of today's jet propulsion. Heron did not consider this invention being useful for everyday applications: he considered his aeolipile invention as a novelty, a remarkable toy.
The above link shows the first steam engine. I'll provide an image when I get my other computers back up and running.
Pythagoras is known to most students today as the author of the Pythagorean Theorem (a<sum>+ b<sum> = c<sum>). There was far more to Pythagoras' philosophy than this: he was a deep thinker on religion, the nature of the soul, and the harmony of the cosmos.
With the “Pythagorean Cup” he illustrated to his students the virtues of moderation: when filled halfway, it retains its contents, but if it's too full, all of the liquid drains out through a hole in the bottom.
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