We mean James Watt, the great improver of the steam engine—that wonderful motor which has not inaptly been called tfce iron apostle of civilization. This is not his natal day fcut it is the ...

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 ...

With the injection of an excess of steam—a system which I characterized as an inverted steam engine—more satisfactory results were obtained, and it was found possible to work with a moderate ...