Trinity Test. <a href="//commons.wikimedia.org/wiki/Norris_Bradbury" class="mw-redirect" title="Norris Bradbury">Norris Bradbury</a>, group leader for bomb assembly, stands next to the partially assembled Gadget atop the test tower. Later, he became the director of Los Alamos, after the departure of Oppenheimer.
Federal government of the United States
1945-07-15
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