1949 in science
Events
- November 20th: Chemists manage to isolate one milligram from Plutonium extracts from the Uranium irradiated in the atomic pile Zoe.
- December 27th: The university of Princeton announces that Albert Einstein has just formulated a theory known as of the “unit field” joining together in the same diagram the laws of the gravitation and that of electromagnetism.
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the Astronome Gerald Kuiper discovers Néréide, satellite of Neptune.
- the American Edward Murphy invents its famous Loi of Murphy.
- the American Mathématicien of Hungarian origin John von Neumann calculates the number pi until the decimal 2037 with a computer ENIAC.
- Method of dating of the objects using the Carbon-14, developed by Willard Frank Libby.
Techniques applied
- February 2nd: Setting in market of the first disc 45 turns. The diffusion of the microgroove replaces the 78 turns .
- January 26th: Invention of the Tape recorder by the company 3M.
- May 11th: Beginning of the marketing of the apparatus Polaroid.
- July 14th: Explosion of the first Soviet atomic bomb (confirmed information in September).
- December 29th: With Bridgeport (Connecticut), first station of Television on the tape UHF ( Ultra High Frequency ).
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Construction in England of the first purely electronic computer.
- the first 2 CV leaves the factories Citroen.
Price
- Physical Nobel Prize
- : Hideki Yukawa (Japanese) for its discovery of the Meson.
- Chemistry: William Francis Giauque (American born in Canada) for her work in Thermodynamic chemical.
- Physiology or medicine: Walter Rudolf Hess (Swiss, Neurology), Antonio Caetano De Abreu Freire Egas Moniz (Portuguese, leucotomy préfrontale)
- Medal Wollaston: Robert Broom
Births
Death
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