atomic bomb

add nonfissionable material to (fissionable material) so as to make unsuitable for use in an atomic bomb v

later used temporarily by the United States to test atomic bombs n World War II (February 1944)

United States general who served as military director of the atomic bomb project (1896-1970)

on August 6, 1945 Hiroshima was almost completely destroyed by the first atomic bomb dropped on a populated area

on August 9, 1945 Nagasaki became the second populated area to receive an atomic bomb