British astrophysicist (1882-1944) famous for his work regarding the theory of relativity, remembered for his observations of bending starlight during the 1919 total solar eclipse that offered experimental proof of Einstein's theory. AQS on an off-white 8 x 3 sheet, signed and dated below in fountain pen, "A. S. Eddington, Cambridge, 9 May 1940," who writes above: "The progress of knowledge is to be measured not by the questions that it has answered but by the questions that it provokes us to ask." In fine condition.
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