William Henry Bragg

William Henry Bragg was an English physicist who shared the 1915 Nobel Prize in Physics with his son William Lawrence Bragg for their work on X-ray crystallography.

William Lawrence Bragg: William Lawrence Bragg was an Australian-born British physicist who shared the 1915 Nobel Prize in Physics with his father. Father and son jointly developed the methods recognized by their Nobel Prize.
Bragg's law: Bragg’s law relates X-ray wavelength, crystal-plane spacing, and diffraction angle. William Henry and William Lawrence Bragg used this relation to interpret crystal diffraction.
University of Adelaide: The University of Adelaide is an Australian public research university founded in 1874. Bragg taught physics there and began influential investigations of radioactivity and X-rays.
Nobel Prize in Physics: The Nobel Prize in Physics is an annual international award for outstanding contributions to physics. Bragg and his son received the 1915 award for their analysis of crystal structure using X-rays.
Ernest Rutherford: Ernest Rutherford was a physicist whose experiments established the nuclear model of the atom. Bragg worked under Rutherford at the University of Manchester before moving to Leeds.
X-ray diffraction: X-ray diffraction is the scattering of X-rays by matter, producing patterns that reveal structural arrangement. The Braggs’ crystal experiments were a defining application of this broader phenomenon.
University of Leeds: The University of Leeds is a public research university in England, established as an independent university in 1904. Bragg led its physics department while developing X-ray crystallography with his son.
Royal Society: The Royal Society is the United Kingdom’s national academy of sciences, founded in 1660. Bragg served as its president from 1935 to 1940.
Henry Moseley: Henry Moseley was an English physicist who used X-ray spectra to establish atomic number as a fundamental property of elements. Moseley’s X-ray spectroscopy grew from the experimental program Bragg helped foster.
Crystal lattice: A crystal lattice is a repeating three-dimensional arrangement of points representing a crystal’s periodic structure. Regularly spaced lattice planes generate the diffraction peaks the Braggs analyzed.

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