ABSTRACT
Nuclear magnetic resonance (NMR) is a phenomenon associated with atomic nuclei having an odd number of either protons or neutrons. The first demonstration of NMR was made by Ra bi in 1.938 using molecular beams. The first observations in condensed matter were made independently and almost simultaneously by Purcell, Torry and Pound in Cambridge, and by Block and Hansen at Stanford. The Nobel Prize was awarded jointly to Purcell and Bloch in 1952.
