Who developed the diagram known as a spacetime diagram,and was a professor at Königsberg, Zürich and Göttingen?
Minkowski diagram The Minkowski diagram, also known as a spacetime diagram, was developed in 1908 by Hermann Minkowski and provides an illustration of the properties of space and time in the special theory of relativity. It allows a qualitative understanding of the corresponding phenomena like time dilation and length contraction without mathematical equations.
Fritz Medicus Fritz Medicus (April 23, 1876-January 13, 1956) was a German-Swiss philosopher. He was awarded his doctorate while studying in Jena, with the publication of his dissertation, "Kant's transcendental aesthetics and non-euclidian geometry". He was the Chair of Philosophy at the Martin Luther University of Halle-Wittenberg, and moved to ETH Zurich in 1911. Medicus wrote in the tradition of German idealism.