Fritz Hasenöhrl – zapomniany prekursor Einsteina

Abstract

In 1904 the Austrian physicist Fritz Hasenöhrl demonstrated that the radiation in the cavity of a blackbody has mass. It wasn’t until a year later that the Swiss physicist Albert Einstein also proved the equivalence of mass and energy. In 1907, after the death of Ludwig Boltzmann, Fritz Hasenöhrl, was appointed as his successor, full professor of theoretical physics at the University of Vienna. Fritz Hasenöhrl had a close, lasting friendship with the Polish physicist Marian Smoluchowski. He died in 1915 on the Austro-Italian front during the fighting for Tyrol.