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Portrait of William Lawrence Bragg taken when he was around 40 years old. Sir William Lawrence Bragg (31 March 1890 – 1 July 1971), known as Lawrence Bragg, 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.
Sir Lawrence Bragg, the director of the Cavendish Laboratory, where Watson and Crick worked, gave a talk at Guy's Hospital Medical School in London on Thursday 14 May 1953 which resulted in an article by Ritchie Calder in the News Chronicle of London, on Friday 15 May 1953, entitled "Why You Are You. Nearer Secret of Life."
According to the 2θ deviation, the phase shift causes constructive (left figure) or destructive (right figure) interferences. Lawrence Bragg explained this result by modeling the crystal as a set of discrete parallel planes separated by a constant parameter d. He proposed that the incident X-ray radiation would produce a Bragg peak if ...
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Sir Lawrence Bragg became Cavendish Professor just before the outbreak of the Second World War, which resulted in many staff joining various defence research establishments, notably to develop radar. [6] Work on neutron physics performed at this time was translated into the Manhattan Project to build an atom bomb. [6]
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Bragg had been wracked by doubts and problems with the military command structure. Tucker formed an experimental sound ranging section, which spearheaded the development of an effective system of sound ranging enemy guns. Vital to the success was Tucker's invention of a 'hot wire' microphone, capable of identifying the shell sound wave and the ...