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    Listen to new episodes of “Relics: History Podcast”

    The National Security Research Center presents “Secret City Babies” and “How to Make a Fat Man”

    By Micaela Hester | June 2, 2021

    Fat Man
    Fat Man shake test at V site.

    “Secret City Babies” reveals the Manhattan Project baby boom at P.O. Box 1663. “How to Make a Fat Man” examines the creation of the plutonium nuclear weapon that helped end World War II and launch the Atomic Age.