developments, including the locally self-consistent multiple scattering theory developed by Malcolm Stocks and Yang Wang that can be used to obtain the electronic and magnetic states of any ordered or disordered solid. In 1950, Korringa showed that the spin relaxation rate divided by the square of the magnetic resonance field shift (the Knight shift) obtained from an NMR experiment is equal to a constant, κ, times the temperature T. The magnitude of the Korringa constant κ and its possible deviation from a constant value is the signature of the effects of strong correlations in the electron gas. References 1915 births 2015 deaths 20th-century Dutch physicists Delft University of Technology alumni Academic staff of Leiden University Ohio State University faculty Theoretical physicists American centenarians Men centenarians People from Heemstede Dutch centenarians Dutch emigrants to the United States Fellows of the American Physical Society