Raoul Pictet

Encyclopedia : R : RA : RAO : Raoul Pictet

Raoul-Pierre Pictet (4 April 1846 - 27 July 1929) was a Swiss physicist, who first created liquid oxygen. He was born in Geneva.

On December 22, 1877, the Academy of Sciences in Paris received a telegram from a physicist in Geneva. It was from Raoul Pictet and read Oxygen liquefied to-day under 320 atmospheres and 140 degrees of cold by combined use of sulfurous and carbonic acid.The announcement was almost simultaneous with that of Cailletet who also liquefied oxygen by a completely different process.

Pictet died in Paris in 1929.

From Wikipedia, the Free Encyclopedia. Original article here. Support Wikipedia by contributing or donating.
All text is available under the terms of the GNU Free Documentation License See Wikipedia Copyrights for details.