Physics
- Megh Nad Saha states his ionization equation.
- Albert Einstein delivers his Leiden Lecture.
- Publication of Arthur Eddington's observation of the "bending of light" during the total solar eclipse of May 29, 1919, confirming Einstein's theory of general relativity.
- Ernest Rutherford predicts the existence of the neutron.
- James Jeans discovers that the dynamical constants of motion determine the distribution function for a system of particles.
- Publication of Alan A. Griffith's analysis of the process of brittle fracture.
Read more about this topic: 1920 In Science
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