Презентация по теме Уильям Лоренс Брэгг

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Sir William Lawrence Bragg ( 31 March 1890 – 1 July 1971) was an Australian-born British physicist and X-ray crystallographer, discoverer (1912) of the Bragg law of X-ray diffraction, which is basic for the determination of crystal structure. He was joint winner (with his father, Sir William Bragg) of the Nobel Prize for Physics in 1915: "For their services in the analysis of crystal structure by means of X-ray " an important step in the development of X-ray crystallography. X-ray crystallographer discoverer - исследователь рентгеновской кристаллографии diffraction - преломление determination of crystal structure - определение кристаллической структуры

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Lawrence Bragg is the youngest Nobel Laureate, having received the award at the age of 25. He was the director of the Cavendish Laboratory, Cambridge.

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Bragg was born in North Adelaide, South Australia. He showed an early interest in science and mathematics. His father, William Henry Bragg, was Elder Professor of Mathematics and Physics at the University of Adelaide.

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X-ray beam – рентгеновский пучок the crystal lattice – кристаллическая решетка the X-ray spectrometer – рентгеновский спектрометр tool - инструмент Bragg is most famous for his law on the diffraction of X-rays by crystals. Bragg's law makes it possible to calculate the positions of the atoms within a crystal from the way in which an X-ray beam is diffracted by the crystal lattice. He made this discovery in 1912, during his first year as a research student in Cambridge. He discussed his ideas with his father, who developed the X-ray spectrometer in Leeds. This tool allowed many different types of crystals to be analysed .

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Bragg's research work was interrupted by both World War I and World War II. During both wars he worked on sound ranging methods for locating enemy guns. sound ranging - звуколокация

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On 2 September 1915 his brother was killed during the Gallipoli Campaign . Shortly afterwards, William Lawrence Bragg received the news that he had been awarded the Nobel Prize in Physics, aged 25, making him the youngest ever winner of a Nobel Prize.

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