7h 10min, jun 1, 1764 y - James Watt
Description:
While repairing a model Newcomen steam engine in 1764, Watt was impressed by its waste of steam. In May 1765, after wrestling with the problem of improving it, he suddenly came upon a solution—the separate condenser, his first and greatest invention
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Date:
7h 10min, jun 1, 1764 y
Now
~ 261 years ago
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