Heisenberg was a very good student and needed only three years to finish his studies. He then wrote a doctoral thesis about movements in the flows of liquids ("Über Stabilität und Turbulenz von Flüssigkeitsströmen"—"On the stability and turbulence of liquid streams"). In 1924 he became assistant to Max Born at the University of Göttingen. In June 1925 he was recovering from hay fever on the island Helgoland, and while working alone made the decisive breakthrough to Quantum mechanics. Back in Göttingen, together with Max Born and Pascual Jordan, they wrote the basic paper which founded Quantum 