Atomic bomb named "Gilda," first bomb in US Operation Crossroads nuclear weapon tests, detonates at Bikini Atoll

WS across water: initial blast, Wilson cloud (a transient condensation cloud), and emerging mushroom cloud up into sky / front half of B-29 Dave's Dream with bomb bay doors open / inside: bombardier Major Harold Wood hunched over controls in nose cone windows / MS across land: initial blast, Wilson cloud, and emerging mushroom cloud up into sky / aerial: mushroom cloud rises / viewed from plane / MS top of mushroom cloud rising / VS sailors on ship look at stem of mushroom cloud in distance, top of cloud still rising / WS cloud dispersing in wind / MS sailors on deck of ship, some with backs turned, others facing rail, all wearing dark goggles, blast flares across / CU sailor during blast