1731 in science

	… 1721; 1722; 1723; 1724; 1725; 1726; 1727; ; 1728; 1729; 1730; 1731; 1732; 1733; 1734; ; 1735; 1736; 1737; 1738; 1739; 1740; 1741 …;
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The year 1731 in science and technology involved some significant events.

Agriculture and horticulture

Philip Miller publishes The Gardeners Dictionary, containing the Methods of Cultivating and Improving the Kitchen Fruit and Flower Garden in London.
Jethro Tull publishes The New Horse-Houghing Husbandry; or, an essay on the principles of tillage and vegetation in London.

John Bevis observes the Crab Nebula for the first time in the modern era.
The octant is developed by John Hadley (it will eventually be replaced as an essential tool of navigation by the sextant).
The orrery (or planetarium model) is developed as an apparatus showing the relative positions of heavenly bodies in the solar system by using balls moved by wheelwork.

The modern seismograph is developed by Italian scientist Nicholas Cerillo using a pendulum.

Laura Bassi becomes the first official female university teacher on being appointed professor of anatomy at the University of Bologna at the age of 21.[3]
The Society for the Improvement of Medical Knowledge in Edinburgh begins publication of the peer reviewed Medical Essays and Observations.[4]

The harpoon gun is developed and used for the purpose of throwing the harpoon into the body of whales.

Publication begins in Augsburg and Ulm of Johann Jakob Scheuchzer's Physica Sacra which attempts to provide a scientific explanation of Biblical history.

October 10 – Henry Cavendish, English scientist (died 1810)
November 9 – Benjamin Banneker, African-American astronomer and surveyor (died 1806)
December 12 – Erasmus Darwin, English physician and botanist (died 1802)

Heaney, J. B.; Holdgate, M. W. (1957). "The Gough Island Scientific Survey". The Geographical Journal. 123: 20–31. doi:10.2307/1790719. JSTOR 1790718.
Maor, Eli (2019), The Pythagorean Theorem: A 4,000-Year History, Princeton University Press, pp. 133–134, ISBN 978-0-691-19688-6
"The 18th Century Women Scientists of Bologna". ScienceWeek. 2004. Archived from the original on 2012-03-02. Retrieved 2011-04-26.
Benos, Dale J.; et al. (2007). "The ups and downs of per review". Advances in Physiology Education. 31 (2): 145–152. doi:10.1152/advan.00104.2006. PMID 17562902. Retrieved 2011-08-30.
"Copley Medal | British scientific award". Encyclopedia Britannica. Retrieved 21 July 2020.

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