File:Bragg lab1 1930 (cropped).jpg

DescriptionBragg lab1 1930 (cropped).jpg English: Laboratory of W. H. Bragg (1931) - George Gamov Русский: Лаборатория У. Г. Брега (1931) Date 2009 Source

English French William Henry Bragg et ses étudiants (1931). determination method: SHA-1