Raoul Pictet

Raoul Pierre Pictet ( born April 4, 1846 in Geneva, † July 27, 1929 in Paris) was a Swiss physicist with focus on Low Temperature Physics

After studying in his native city of Geneva and in Paris Raoul Pictet took over as secretary of the Swiss minister at the opening de Suez Canal in 1869 and was from 1871 to 1874 in Egypt operates. On his return to Geneva, he worked first teacher, from 1879 as a professor at the University of Geneva. There Pictet proved that can be hydrogen, nitrogen and oxygen, using high pressure and low temperatures in the liquid state transfer and then can even be fixed. Similar results were achieved at about the same time, Louis Paul Cailletet in Paris with a different technical applications.

1881 Pictet described in his patent application " innovations on ships' hulls " for the first time the principle of the slider. In it he also indicated the important link overcoming the wave resistance.

Pictet lived since 1886 in Berlin, where he established a laboratory for low temperature physics and taught at the University of Berlin. He produced and sold chillers.

Works

• Mémoire sur la liquefaction de l' Oxygène, la la solidification Liquefaction et de L' hydrogène et les théories sure the changements des corps. Paris ( 1878)
• Synthèse de la chaleur. Paris ( 1879)
• Sur la synthèse de la chaleur. Geneva ( 1895)
• For the mechanical theory of explosives. Weimar ( 1902)