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John Desmond Bernal, Irish-English crystallographer and physicist (died 1971)

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J. D. Bernal
Irish scientist, pioneer of X-ray crystallography in biology (1901–1971)
John Desmond Bernal was an Irish scientist who pioneered the use of X-ray crystallography in molecular biology. He published extensively on the history of science. In addition, Bernal wrote popular books on science and society. He was a communist activist and a member of the…Source: Wikipedia (CC BY-SA)
May 10
Day of the year
May 10 is the 130th day of the year in the Gregorian calendar; 235 days remain until the end of the year.Source: Wikipedia (CC BY-SA)