NOBEL PRIS 1915 Sir William Henry Bragg (1862-1942) father Sir William Lawrence Bragg (1890-1871)s son Bragg's Law 1913 SVERIGE WHBRAGG Nobel Prize in Physics 1915 WLBRAGG Diffraction geometry Leyun WangDiffraction geometry Sir William Henry Bragg (1862-1942) father Sir William Lawrence Bragg (1890-1871) son Bragg’s Law 1913 Nobel Prize in Physics 1915 Leyun Wang