Baron Loránd Eötvös de Vásárosnamény (Hungarian: vásárosnaményi báró Eötvös Loránd Ágoston or Loránd Eötvös, pronounced [ˈloraːnd ˈøtvøʃ]; 27 July 1848 – 8 April 1919), more commonly called Baron Roland von Eötvös in English literature,[2] was a Hungarian physicist. He is remembered today largely for his work on gravitation and surface tension, and the invention of the torsion pendulum.