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 ...
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High-flying RPG city builder Airborne Empire has launched on Steam, and it's testing my balancing skills in more ways than oneMore efficient engines so I burn less coal to stay airborne ... You'll find Airborne Empire on Steam, where it's 10% off for the next two weeks.
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