| Millenium:
Century: Decade: |
Previous (19th) <<<<< Current (20th) >>>>> Next (21st) Previous (3rd) <<<<< Current (4th) >>>>> Next (5th) |
|
|
|
|
|
|
|
|
| 1931: | Anderson discovers the positron (anti-electron)
Pauli suggests the existance of the neutrino |
| 1932: | Chadwick discovers the neutron
Cockcroft & Walton produce the first nuclear reaction with a high-voltage accelerator |
| 1933: | |
| 1934: | |
| 1935: | Yukawa proposes the existance of mesons |
| 1936: | Jesse Owens breaks the Olympic record in the 200-meter race |
| 1937: | Shannon Invents Switching Algebra |
| 1938: | Hahn & Strassmann discover nuclear fission
Bethe proposes thermonuclear fusion as the energy source of stars |
| 1939: | Einstein informs Roosevelt of the possibility of the Atomic Bomb
The world's first jet-propelled airplane makes its maiden flight Garmany Invades Poland, starting WWII Zworkin Invents the Photomultiplier |
| 1940: | Leon Trotsky fatally wounded
Watson-Watts Invents RADAR (RAdio Detection And Ranging) McMillan, Seaborg, et al. produces the first synthetic transuranic elements (transuranic = heavier than uranium)
|