1923: Louis de Broglie propses an equation for the wavelgnth of a particle
1925: Wolfgang Pauli discovers the Pauli Exclusion principle
1926: Erwin Schroedinger introduces quantum mechanics with his equaion describing the electron in an atom. 
1927: Heissenberg establishes his uncertainty principle
1928: Raman Scattering is discovered
1932: The first splitting of the atom via a particle accelerator is done by Cockroft and Walton
1932: Beckman invents the pH meter
1946: Nuclear Magnetic Resonance (NMR) is developed by Purell and Broch
1985: The fullerenes are discovered by Kroto, Smalley, and Curl
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