.Otto Stern was born in 1888 in Sorau, which was then part of Germany. With the rise of the Nazis, he emigrated to the United States where he continued his research.

In 1943 he was awarded the Nobel prize in physics for his work with the molecular beam, in which the magnetic moment of an ion current was examined and found to split into only two directions, which contradicted the classical physics assumption that predicted uniform distribution.

The `Stern-Gerlach’ experiment substantiated the projection of quantum mechanics, which at the time was still in its infancy, and demonstrated the limitations of classical physics.

Otto Stern passed away in 1969.