1840 in science
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| … 1837 • 1838 • 1839 – 1840 – 1841 • 1842 • 1843 … … 1810s • 1820s • 1830s – 1840s – 1850s • 1860s • 1870s … … 18th century – 19th century – 20th century … |
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The year 1840 in science and technology involved some significant events, listed below.
Contents |
[edit] Astronomy
- John William Draper invents astronomical photography and photographs the Moon
[edit] Exploration
- Adelie land first visited by Jules Dumont d'Urville and claimed for France
[edit] Geology
- Louis Agassiz publishes his Studies on Glaciers
[edit] Technology
- William Fox Talbot invented the positive / negative process of photography used in all modern photography. He refers to this as photogenic drawing
[edit] Awards
[edit] Births
- February 4 - Hiram Maxim (d. 1916), inventor of the machine gun.
- February 5 - John Boyd Dunlop (d. 1921), inventor.
- February 10 - Per Teodor Cleve (d. 1905), chemist.
- March 28 - Emin Pasha (d. 1892), explorer.
- August 4 - Richard von Krafft-Ebing (d. 1902), sexologist.
[edit] Deaths
- March 2 - Heinrich Wilhelm Matthäus Olbers (b. 1758), astronomer.
- March 23 - William Maclure (b. 1763), geologist.
- April 25 - Simeon Poisson (b. 1781), mathematician.
