1939 in science
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The year 1939 in science and technology involved some significant events, listed below.
Contents |
[edit] Astronomy
- Robert Oppenheimer and H. Snyder predict the existence of a new type of celestial objects that would come to be called black holes (Phys.Rev. 56, 455-459, 1939).
- Robert Oppenheimer and G. Volkoff first calculate the structure of neutron stars, a new type of celestial object (Phys.Rev. 55, 374-381 1939).
[edit] Medicine
- John H. Lawrence used beams of energized neutrons from a particle accelerator to treat a patient with leukemia.
[edit] Physics
- Nuclear fission is discovered independently by Lise Meitner and Otto Hahn.
[edit] Technology
- January 11 - First flight of the Lockheed P-38 Lightning.
- December 9 - First flight of the Consolidated XB-24 "Liberator" bomber prototype.
- Kirlian photography is invented by Semyon Kirlian.
[edit] Awards
[edit] Births
- May 19 - Dick Scobee (d. 1986), astronaut.
- October 7 - John Hopcroft, American theoretical computer scientist.
[edit] Deaths
- October 7 - Harvey Cushing (b. 1869), American neurosurgeon.fr:1939 en science
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