Albert Einstein · Year
Albert Einstein records dated 1938, drawn directly from the World History Database source collection.
With Leopold Infeld and Banesh Hoffmann, Einstein developed an approximation in which the motion of gravitating bodies follows from the relativistic field equations rather than from a separately imposed force law.
Publishes work deriving approximate equations of motion for gravitating bodies from general relativity.
Publishes The Evolution of Physics with Leopold Infeld for a broad readership.
With Leopold Infeld, publishes The Evolution of Physics, explaining the conceptual transition from classical mechanics and fields to relativity and modern physics.