Bettina Hoerlin holds a doctorate in policy sciences and taught at the University of Pennsylvania for seventeen years, having previously served as health commissioner of Philadelphia. She was also a visiting professor at Haverford College. She lives with her husband, physicist Gino Segre, in Philadelphia.
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Enrico Fermi is unquestionably among the greats of the world's physicists, the most famous Italian scientist since Galileo. Called the Pope by his peers, he was regarded as infallible in his instincts and research. His discoveries changed our world; they ... SEE MORE