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The year 1933 in science and technology involved some significant events, listed below.

Contents 1 Astronomy 2 Engineering Seismology 3 Births 4 Deaths

[edit] Astronomy

• Walter Baade and Fritz Zwicky invent the concept of neutron star, a new type of celestial object. They suggest that supernovae might be created by the collapse of a normal star to form a neutron star.

[edit] Engineering Seismology

First recording of earthquake strong ground motions, 10 March 1933 Long Beach (California) Earthquake, by an accelerograph network installed in 1932 by the U.S. Coast and Geodetic Survey.

[edit] Births

• January 6 - Oleg Makarov (d. 2003), cosmonaut
• September 10 - Yevgeny Khrunov (d. 2000), cosmonaut

[edit] Deaths

• September 25 - Paul Ehrenfest (b. 1880), Austrian physicist and mathematician.