Johannes Diderik van der Waals higher temperatures. Nitrogen, oxygen, hydrogen, and helium subsequently succumbed to liquefaction. Heike Kamerlingh Onnes was significantly influenced by the pioneer work of van der Waals. In 1908, Onnes became the first to make liquid helium; this led directly to his 1911 discovery of superconductivity. Van der Waals started his career as a school teacher. He became the first physics professor of the University of Amsterdam when in 1877 the old Athenaeum was upgraded to Municipal University. Van der Waals won the 1910 Nobel Prize in physics for his work on the equation of state for gases and liquids. Johannes Diderik
Heike Hennig Heike Hennig Heike Hennig (born 8 November 1966) is a German dancer, choreographer and director of the opera and dance ensemble "Heike Hennig & Co". Heike Hennig had her first dance lessons at the age of 5 years in Leipzig. In 1989, through her escape from East Germany (GDR), she was able to study modern dance, choreography and Body-Mind Centering (BMC) in Cologne and at Moving on Center – School for Participatory Arts and Research in Oakland, California; she then studied in the US with teachers such as Steve Paxton. Following that, Heike Hennig worked in Brazil and Portugal. In