Dame Kathleen Lonsdale DBE FRS was an Irish crystallographer, pacifist, and prison reform activist. She proved, in 1929, that the benzene ring is flat by using X-ray diffraction methods to elucidate the structure of hexamethylbenzene. Wikipedia
Born: January 28, 1903, Newbridge, Ireland
Died: April 1, 1971 (age 68 years), London, United Kingdom
Education: Bedford College, London, Ilford County High School, Royal Holloway, and more
Awards: Davy Medal and Fellow of the Royal Society
Known for: X-ray crystallography
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