Quote of the day
Two important characteristics of maps should be noticed. A map is not the territory it represents, but, if correct, it has a similar structure to the territory, which accounts for its usefulness.
William Lawrence Bragg
Born: March 31, 1890
Died: July 1, 1971 (aged 81)
Bio: Sir William Lawrence Bragg was an Australian-born British physicist and X-ray crystallographer, discoverer of Bragg's law of X-ray diffraction, which is basic for the determination of crystal structure.








