Willem Hendrik Willem Hendrik Keesom was eventually able to solidify 1 cm3 of helium in 1926 by applying additional external pressure. [23] In 1938, Russian physicist Pyotr Leonidovich Kapitsa discovered that helium-


Willem Hendrik Willem Hendrik Keesom was eventually able to solidify 1 cm3 of helium in 1926 by applying additional external pressure. [23] In 1938, Russian physicist Pyotr Leonidovich Kapitsa discovered that helium-


Hendrik | Kapitsa | Keesom | Leonidovich | Pyotr | Russian | Willem |


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