Resonance in Bulk Matter NMR

I remember, in the winter of our first experiments, just seven years ago, looking at snow. . . around my doorstep—great heaps of protons quietly precessing in the earth s magnetic field. 

Bohr was met on the pier in New York City on January 16 by Enrico Eermi, his wife Laura, and Princeton physicist John Wheeler. Bohr spent the day in New York with the Eermis while Wheeler and Rosenfeld went on ahead to Princeton. Bohr had said nothing to Eermi about the fission discovery. He wanted Otto Robert Erisch and Lise Meimer, who proposed the fission 

On October 7, the magnetron was demonstrated for a group of physicists at the Bell Telephone Laboratories in New Jersey. The demonstration had a profound effect on those who saw it this hockey puck-sized device was the means for developing small radar equipment that could be carried by fighter aircraft and ships. 

Things moved rapidly after the magnetron showed its stuff at Bell Labs. Just a little over two weeks later, the decision was made to locate a federally supported laboratory at the Massachusetts Institute of Technology for the development of microwave radar. 

In early 1943, American intelligence learned that the Germans were developing their own radar. In response, a new laboratory was established at Harvard to develop radar countermeasures to protect American war planes and ships from radar detection. Although this work began at MTT, the new center was moved to Harvard and called the Radio Research Laboratory. Joining the effort at Harvard in late 1943 was the Stanford University physicist Felix Bloch. Bloch had been at Los Alamos working on the bomb, but he did not like the military atmosphere at Los Alamos, where mail was routinely opened and surveillance was part of everyday Hfe. 

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