todaysdocument:Before and After Operation Doorstep On March 17, 1953 the Federal Civil Defense Adm
todaysdocument: Before and After Operation Doorstep On March 17, 1953 the Federal Civil Defense Administration conducted Operation Doorstep at Yucca Flat, Nevada. It tested the effects of thermal radiation and nuclear blasts on residential buildings and mannequins such as the model family pictured. Mannequin Family in a House at Operation Doorstep, 7,500 Feet from the Blast, before the Blast, 03/17/1953 Mannequin Family in a House at Operation Doorstep, 7,500 Feet from the Blast, after the Blast, 03/17/1953 (see also “Operation Cue” conducted in May of 1955.) -- source link
#history#operation doorstep#thermal radiation#yucca flat#nuclear blast