<P> The first atomic test, "Trinity", took place on July 16, 1945 . </P> <Li> <P> The Sedan test of 1962 was an experiment by the United States in using nuclear weapons to excavate large amounts of earth . </P> </Li> <P> The Sedan test of 1962 was an experiment by the United States in using nuclear weapons to excavate large amounts of earth . </P> <P> The nuclear powers have conducted more than 2,000 nuclear test explosions (numbers are approximate, as some test results have been disputed): </P>

Where were nuclear weapons tested in the united states