#OTD in 1905. Albert Einstein completes his doctoral thesis at the University of Zurich.
Titled "Eine neue Bestimmung der Moleküldimensionen", he calculated the size of sugar molecules in solution and from this a value for the Avogadro constant. It is related to his work on Brownian motion, published in the same year, and supported the atomic hypothesis, which was still controversial among leading physicists at the time.
1905 Einstein approached Kleiner with a thesis on the electrodynamics of
moving bodies. It was rejected because a) the professors who reviewed it didn't
really understand it, and b) it was purely theoretical in nature.
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