1940 in science
The year 1940 CE in science and technology.See also: 1939 in science, other events of 1940, 1941 in science and the list of years in science.
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2 Chemistry 3 Physics 4 Births 5 Deaths |
Aeronautics
- First flight of the P-51 Mustang
Chemistry
- February 27 - The radioactive isotope carbon-14 is discovered by Martin Karmen and Ram Ruben
- Astatine synthesized by Corson, MacKenzie, and Segre
- Neptunium, the first transuranic element, synthesized by McMillan and Abelson
Physics
- January 5 - FM radio demonstrated to the FCC for the first time
- Magnetron invented by John Randall and Harry Boot