Robert Christy, Manhattan Project physicist, dies

Published October 5, 2012 4:32am ET



PASADENA, Calif. (AP) — Robert F. Christy, a former California Institute of Technology professor who helped design the trigger mechanism for the atomic bombs used in World War II, died Wednesday. He was 96.

Christy died of natural causes at his home in Pasadena, surrounded by his family, according to Caltech spokeswoman Deborah Williams-Hedges.

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