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Raoul PictetRaoul-Pierre Pictet (4 April 1846 - 27 July 1929) was a physicist, who first created liquid oxygen.He was born in Geneva in 1846. 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. Pictet died in Paris in 1929. This article is a stub. You can help Wikipedia by fixing it. 
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