Willem Hendrik Keesom
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| Willem Keesom | |
|---|---|
 | |
| Born | 21 June 1876 Texel |
| Died | 24 March 1956 (aged 79) Leiden |
| Nationality | Dutch |
| Known for | helium |
| Scientific career | |
| Fields | physics |
| Doctoral advisor | Johannes Diderik van der Waals |
Willem Hendrik Keesom (/ˈkeɪsoʊm/[1][2]) (21 June 1876, Texel – 24 March 1956, Leiden) was a Dutch physicist who, in 1926, invented a method to freeze liquid helium. He also developed the first mathematical description of dipole-dipole interactions in 1921. Thus, dipole-dipole interactions are also known as Keesom interactions. He was previously a student of Heike Kamerlingh Onnes, who had discovered superconductivity (a feat for which Kamerlingh Onnes received the 1913 Nobel Prize in Physics).
He also discovered the lambda-point transition specific-heat maximum between Helium-I and Helium-2 in 1930 (Basic Superfluids p25/Tony Guenault).
In 1924 he became member of the Royal Netherlands Academy of Arts and Sciences.[3]
See also[edit]
References[edit]
- ^ Willem Hendrik Keesom pronunciation
- ^ Voiceless E
- ^ "Willem Hendrik Keesom (1876 - 1956)". Royal Netherlands Academy of Arts and Sciences. Retrieved 28 July 2015.
External links[edit]
- Albert van Helden, Willem Hendrik Keesom 1876 – 1956, In: K. van Berkel, A. van Helden and L. Palm ed., A History of Science in the Netherlands. Survey, Themes and Reference (Leiden: Brill, 1999) 498-500.
- Scientists of the Dutch School: Willem Hendrik Keesom @ Royal Netherlands Academy of Arts and Sciences.
- P.H. van Laer, Keesom, Wilhelmus Hendrikus (1876-1956), in Biografisch Woordenboek van Nederland.
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