1723 in science

The year 1723 in science and technology involved some significant events.

List of years in science (table)
… 1713 1714 1715 1716 1717 1718 1719 1720 1721 1722 1723 1724 1725 1726 1727 1728 1729 1730 1731 1732 1733 …
Art Archaeology Architecture Literature Music Philosophy Science +...

Geophysics

• George Graham discovers diurnal variation in Earth's magnetic field.[1][2]
• Antoine de Jussieu publishes De l'Origine et des usages de la Pierre de Foudre on the origins of fossils, prehistoric stone tools and meteorites.[3]

Optics

• Giacomo F. Maraldi makes the first observation of the Arago spot, unrecognized at this time.[4]

Births

• January 5 - Nicole-Reine Lepaute, French astronomer (died 1788)
• January 31 – Petronella Johanna de Timmerman, Dutch scientist (died 1786)
• February 17 – Tobias Mayer, German cartographer, astronomer and physicist (died 1762)
• April 30 – Mathurin Jacques Brisson, French zoologist (died 1806)
• Saverio Manetti, Italian natural historian (died 1785)

Deaths

• August 26 – Anton van Leeuwenhoek, Dutch pioneer of the microscope (born 1632)

References

1. Graham, George (1724). "An Account of Observations Made of the Variation of the Horizontal Needle at London, in the Latter Part of the Year 1722, and Beginning of 1723". Philosophical Transactions of the Royal Society. 33: 96–107. doi:10.1098/rstl.1724.0020.
2. Graham, George (1724). "Observations of the Dipping Needle, Made at London, in the Beginning of the Year 1723". Phil. Trans. 33: 332–339. doi:10.1098/rstl.1724.0062.
3. "Les pierres de foudre". Retrieved 2011-10-18.
4. Hecht, Eugene (2002). Optics (4th ed.). San Francisco: Addison Wesley. p. 494. ISBN 0-8053-8566-5.