Lawrence Bragg

Sir

Lawrence Bragg

CH OBE MC FRS
Sir; Lawrence Bragg; CH OBE MC FRS
	Lawrence Bragg in 1915
Born	William Lawrence Bragg; 31 March 1890; Adelaide, South Australia
Died	1 July 1971 (aged 81); Waldringfield, Ipswich, Suffolk, England
Education	St Peter's College, Adelaide
Alma mater	University of Adelaide; Trinity College, Cambridge;
Known for	X-ray diffraction; X-ray spectroscopy; X-ray microscopy; Bubble raft; Bragg's law; Bragg-Gray cavity theory; Bragg-Williams approximation
Spouse	Alice Hopkinson (1899–1989)
Awards	Nobel Prize in Physics (1915); Barnard Medal (1915); Matteucci Medal (1915); Fellow of the Royal Society (1921); Hughes Medal (1931); Dalton Medal (1942); International Member of the American Philosophical Society (1943); Foreign Associate of the National Academy of Sciences (1945); Royal Medal (1946); Roebling Medal (1948); International Member of the American Academy of Arts and Sciences (1959); Copley Medal (1966);
	Scientific career
Fields	Physics
Institutions	University of Adelaide; University of Manchester; University of Cambridge;
Academic advisors	J. J. Thomson; W. H. Bragg;
Doctoral students	John Crank; Samuel Tolansky; Ronald Wilfred Gurney; Alex Stokes; Evan James Williams;
Other notable students	William Cochran
Notes
	He was the son of W. H. Bragg. The PhD did not exist at Cambridge until 1919, and so J. J. Thomson and W. H. Bragg were his equivalent mentors.

Sir William Lawrence Bragg, CH, OBE, MC, FRS (31 March 1890 – 1 July 1971) was an Australian-born British physicist and X-ray crystallographer, discoverer (1912) of Bragg's law of X-ray diffraction, which is basic for the determination of crystal structure. He was joint recipient (with his father, William Henry Bragg) of the Nobel Prize in Physics in 1915, "For their services in the analysis of crystal structure by means of X-rays"; an important step in the development of X-ray crystallography.

Bragg was knighted in 1941. As of 2023, he is the youngest ever Nobel laureate in physics, having received the award at the age of 25 years. Bragg was the director of the Cavendish Laboratory, Cambridge, when the discovery of the structure of DNA was reported by James D. Watson and Francis Crick in February 1953.

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