The 1944 Physics Nobelist I.I. Rabi was an American physicist and Nobel laureate, born in Austria-Hungary in 1898. He was a pioneer in the field of atomic and molecular physics, and made significant contributions to the development of magnetic resonance and nuclear magnetic resonance. He was awarded the Nobel Prize in Physics in 1944 for his discovery of nuclear magnetic resonance. He was also a professor at Columbia University and a member of the National Academy of Sciences.