© Trustees of Columbia University in the City of New York.
The lower portion of the blackboard shows Rabi's calculation for the transition frequency in a magnetic resonance experiment. Rabi, an Austrian-born physicist who spent most of his career at Columbia University, received the 1944 Nobel Prize in Physics for developing the resonance method of recording the magnetic properties of atomic nuclei. This technique has broad-ranging applications from medical imaging to atomic clocks. (Unit: 5)