Irving Langmuir (1881–1957) was an American physical chemist and metallurgical engineer known for foundational work in surface chemistry. He received the Nobel Prize in Chemistry in 1932 for his significant contributions to the field.
Born in Brooklyn, New York, he earned a degree in metallurgical engineering from Columbia University in 1903. He completed his PhD in physical chemistry at the University of Göttingen in 1906 under Walther Nernst. From 1906 to 1909, he taught chemistry at Stevens Institute of Technology in Hoboken, New Jersey, before joining the General Electric Company (GEC) laboratories in Schenectady, New York. He remained there until retiring as associate director in 1950.
At GEC, Langmuir improved the durability of tungsten filaments for electric bulbs. He formulated the Langmuir isotherm, a key principle in surface catalysis. He also developed atomic hydrogen welding, contributed to atomic structure and chemical bonding theory, and invented the Langmuir trough for studying liquid films, along with the Langmuir pump for high-vacuum systems. From 1940, he focused on military and atmospheric research, including gas masks, aircraft de-icing, and artificial fog. He later pioneered cloud seeding for weather modification.
His most influential publication, The Arrangement of Electrons in Atoms and Molecules (1919,) advanced theories of atomic structure and informed his weather research.
John C. Hylander wrote Irving Langmuir: American Scientist (1935,) a biography detailing his career.
More: Wikipedia • READ: Works by Irving Langmuir
The scientist is motivated primarily by curiosity and a desire for truth.
—Irving Langmuir
Topics: Curiosity
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