Isidor Isaac Rabi

Isidor Isaac Rabi ( /ˈrɑːbi/; 29 July 1898 – 11 January 1988) was a Polish-born American physicist and Nobel laureate, recognized in 1944 for his discovery of nuclear magnetic resonance, which is used in magnetic resonance imaging. He was also involved in the development of the cavity magnetron, which is used in microwave radar and microwave ovens.