Hendrik Casimir, Dutch physicist and academic (b. 1909)

Hendrik Brugt Gerhard Casimir ForMemRS (15 July 1909 – 4 May 2000) was a Dutch physicist best known for his research on the two-fluid model of superconductors (together with C. J. Gorter) in 1934 and the Casimir effect (together with D. Polder) in 1948.