654877bd_erials_Science_and_Engineering__Significance
[Date] 1912 [Candidate Moment] Max von Laue discovers the diffraction of x-rays by crystals. [Significance] 
Creates means to characterize crystal structures and inspires W.H. Bragg and W.L Bragg in developing the theory of diffraction by crystals, providing insight into the effects of crystal structure on material properties.
Greatest Moments in Materials Science and Engineering
Significance