![]() ![]() The patent has no illustrations or even description, but in 1702 Savery described the machine in his book The Miner’s Friend, or, An Engine to Raise Water by Fire, in which he claimed that it could pump water out of mines. ![]() The first commercial steam-powered device was a water pump developed in 1698 by Thomas Savery, who demonstrated it to the Royal Society a year later. ![]() In the following centuries, the few early steam-powered engines were, like the aeolipile, experimental devices used by inventors to demonstrate the properties of steam. Greek mathematician Hero of Alexandria described the first recorded rudimentary steam engine, known as the aeolipile. The history of the steam engine stretches back as far as the 1st century CE.
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