1667 in science

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The year 1667 in science and technology involved some significant events.

Astronomy

• June 24 - The site of the Paris Observatory is located on the Paris Meridian.

History and philosophy of science

• Thomas Sprat publishes The History of the Royal-Society of London, for the Improving of Natural Knowledge.

Mathematics

• James Gregory demonstrates the transendence of π.

Physiology and medicine

• Robert Hooke demonstrates that the alteration of the blood in the lungs is essential for respiration.
• Jean-Baptiste Denys performs the first blood transfusion from a lamb into a boy.
• Thomas Willis publishes Pathologicae Cerebri, et nervosi generis specimen.

Publications

• Nicolas Steno publishes Elementorum Myologiae Specimen, seu Musculi Descriptio Geometrica. Cui accedunt canis carchariae dissectum caput, et dissectus piscis ex canum genere in Florence, providing a foundation for the study of muscle mechanics, the ovary (based on his dissection of dogfish), and the sedimentary theory of geology.

Births

• April 29 (bapt.) - John Arbuthnot, Scottish-born polymath (d. 1735)
• May 2 - Jacob Christoph Le Blon, German inventor of four-colour printing (d. 1741)
• May 26 - Abraham de Moivre, French mathematician (d. 1754)
• July 27 - Johann Bernoulli, Swiss mathematician (d. 1748)

Deaths

• April 3 - Edward Somerset, 2nd Marquess of Worcester, English inventor (b. 1601?)
• April 10 - Jan Marek Marci, Bohemian physician (b. 1595)
• June 5 - Grégoire de Saint-Vincent, Flemish mathematician (b. 1584)
• probable date - Peter Mundy, English traveller (b. c.1596)