Ironmaster, born in Châtillon-sur-Seine, NE France. While engaged in research on the liquefaction of gases (1877), he liquefied hydrogen, nitrogen, oxygen, and air for the first time by compression, cooling, and sudden expansion. This was also done by Swiss physicist Raoul Pictet (18461929) at about the same time.
Louis-Paul Cailletet (1832 - 1913) was a French physicist and inventor.
He was born in Châtillon-sur-Seine, France.
He succeeded in producing droplets of liquid oxygen in 1877 but by a different method from that used by Raoul Pictet. The result was the production of small droplets of liquid oxygen.
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