December 15, 1958 – Death of Wolfgang Pauli, Nobel Laureate for his Exclusion Principle, proposing a fourth quantum number, and theorizing about the neutrino

Just graduated in Physics in 1918, he published his first article on Albert Einstein's theory of general relativity and three years later, he received his doctorate in Physics at the University of Munich (Germany), supervised by Arnold Sommerfeld, a German physicist specialized in studies of the atom.

At Einstein's suggestion, he published a 237-page monograph on relativity in the German journal Encyklopaedie der mathematischen Wissenschaften ("Encyclopedia of Mathematical Sciences"), receiving praise from Einstein and still one of the basic references on the subject today. .

He spent a year at the University of Göttingen (Germany) as an assistant to Max Born, learning all the secrets of Quantum Mechanics, a branch of contemporary Physics in which Born was a world authority. A year later, he moved to the Institute of Theoretical Physics in Copenhagen (Denmark) to collaborate with Niels Bohr, another physicist who deeply marked Pauli's career.

In 1924, he added a fourth number, the spin, in 1925, he developed his famous Exclusion Principle and his other non-relativistic Spin theory and, in 1932, he made his third great contribution to science, the theoretical proposal of the existence of the neutrino .

In 1945, he received the Nobel Prize in Physics for his discovery of the Exclusion Principle and, a year later, he received American citizenship.

If you want to know more about this scientist and his discoveries, click on the following link: Wolfgang Ernest Pauli