1940 in science
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| List of years in science (Table) |
|---|
| … 1930 . 1931 . 1932 . 1933 . 1934 . 1935 . 1936 … 1937 . 1938 . 1939 -1940- 1941 . 1942 . 1943 … 1944 . 1945 . 1946 . 1947 . 1948 . 1949 . 1950 … |
| Related time period or subjects |
| … 1937 . 1938 . 1939 – 1940 – 1941 . 1942 . 1943 … … 1910s . 1920s . 1930s – 1940s – 1950s . 1960s . 1970s … … 19th century – 20th century – 21st century … |
| Art . Archaeology . Architecture . Literature . Music . Science . more… |
The year 1940 in science and technology involved some significant events, listed below.
Contents |
[edit] Biology
- February 2 - The first transposons are discovered in maize (Zea mays, aka corn) by Barbara McClintock.
[edit] Computer science
- February 2 - The Complex Number Calculator, a calculator for complex arithmetic based on relays, was completed. (see History of computing hardware).
[edit] Chemistry
- February 27 - The radioactive isotope carbon-14 is discovered by Martin Kamen and Sam Ruben
- Astatine synthesized by Corson, MacKenzie, and Segre
- Neptunium, the first transuranic element, synthesized by McMillan and Abelson
[edit] Physics
- January 5 - FM radio demonstrated to the FCC for the first time
- Cavity Magnetron invented by John Randall and Harry Boot
[edit] Births
[edit] Deaths
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