atom bomb explodes near Alamorgordo, NM; aerial Bikini test, ships as targets; Marie Curie Cu; building INSTITUT DU RADIUM PAVILLON CURIE; Curie inlab; CU Geiger counter; CU young Einstein, pipe; CU Dr. Albert Langmuir in frontof sign NATIONAL ANILINE AND CHEMICAL COMPANY; CU Dr. Milliken in lab; uranium prospectors at work; POV from car of research base at Oak Ridge, TN; CU man; scientists with cyclotron; synthetic lightning; Alamagordo test seen from ground; Hiroshima in one piece; clouds; Hiroshima in ruins; aerial of ships; CU ships; US flag raised; Bikini test from water, air, water; shock wave envelops ship; robot arms handle nuclear medicines; technicians seal nuclear drugs in lead box; UN cornerstone laid; split screen A-bomb blast, UN building under construction