1691 in science
From Infogalactic: the planetary knowledge core
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The year 1691 in science and technology involved some significant events.
Astronomy
- The Hartmann Mask is invented by Christopher Scheiner.
Mathematics
- Michel Rolle invents Rolle's theorem.
Medicine
- Anton Nuck's Adenographia curiosa et uteri foeminei anatome nova is published at Leiden, including a description of the canal of Nuck[1] and a demonstration that the embryo is derived from the ovary and not the sperm.[2]
Technology
- Edmond Halley devises a diving bell.[3]
- In music, the "equal temperament scale" used in today's music is developed by organist Andreas Werckmeister.
Births
- November 18 – Mårten Triewald, Swedish mechanical engineer (died 1747)
Deaths
- January 17 – Richard Lower, English physician who performed the first direct blood transfusion (born 1631)
- December 31 – Robert Boyle, British chemist (born 1627)
