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by antonhowes
1440 days ago
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One thing I’ll be mentioning in Part III, as I ran out of space in this one: Drebbel in the 1610s applied his insights into perpetual motion to invent a self-regulating oven/furnace. Using mercury rather than water to trap air in a tube, much like the inverted flask I described, rising temperatures would raise a float sitting on the mercury that would then close the aperture for the air feeding the oven’s flame. |
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I went to the world’s oldest continuously operated library today, in Verona. Since 517. Wow.
Saw a copy of Ars Magna Sciendi, from Kirscher.