AVE6325827: 1940s: Soldier sits at table talking to psychiatrist. / Bridgeman Images

AVE6325833: 1940s: Soldier sits talking while looking sad. / Bridgeman Images

AVE6323766: United States, 1960s: turbine engines in cars at processing plant / Bridgeman Images

AVE6323773: United States, 1970s: girl interviews adults / Bridgeman Images

AVE6323779: United States, 1970s: lady talks to microphone / Bridgeman Images

AVE6323780: United States, 1970s: girl interviews people / Bridgeman Images

AVE6323782: United States, 1960s: man measures pollution from car in lab / Bridgeman Images

AVE6323792: United States, 1970s: children talk with man in room / Bridgeman Images

AVE6323793: United States, 1960s: maintenance testing research and development training for employees / Bridgeman Images

AVE6323798: United States, 1970s: live crabs on market stall / Bridgeman Images

AVE6323799: United States, 1970s: man serves customers / Bridgeman Images

AVE6323802: United States, 1970s: children walk past boats in dock / Bridgeman Images

AVE6323807: United States, 1960s: liquids used for cooling, lubricating, and coating in factory / Bridgeman Images

AVE6323810: United States, 1970s: man gets excited before meal / Bridgeman Images

AVE6323812: United States, 1960s: view across car manufacture plant / Bridgeman Images

AVE6323813: United States, 1970s: children enjoy picnic / Bridgeman Images

AVE6323819: United States, 1960s: bus drives along road / Bridgeman Images

AVE6323824: United States, 1960s: man points at board with stick / Bridgeman Images

AVE6323839: United States, 1960s: lady tests water quality at car factory / Bridgeman Images

AVE6323912: United States, 1940s: man in study talks to camera / Bridgeman Images

AVE6323913: United States, 1940s: Twelve O'clock on clock / Bridgeman Images

AVE6323915: United States, 1940s: animation of star in space / Bridgeman Images

AVE6323919: United States, 1940s: man in study talks to camera / Bridgeman Images

AVE6324212: United States 1950s: Two scientists operate a robotic arm, via remote control, to work with atomic materials in a testing chamber / Bridgeman Images

AVE6324214: United States 1950s: Long shot of the plant industry station in Beltsville, MD / Bridgeman Images

AVE6324216: United States 1950s: A scientist closes a cement door to a radiation testing chamber / Bridgeman Images

AVE6324224: United States 1950s: A researcher removes a bag from the top of a cornstalk, collecting the kernels as he does so / Bridgeman Images

AVE6324228: United States 1950s: A lab technician carefully handles a bottle of radioactive medicine / Bridgeman Images

AVE6324229: United States 1950s: A doctor ties a band around a Leukemia patient's arm / Bridgeman Images

AVE6324231: United States 1950s: A doctor raises a piece of radiation equipment to the upper back of a shirtless patient / Bridgeman Images

AVE6324244: United States 1950s: A hen is fed radioactive carbon and phosphorus by scientists / Bridgeman Images

AVE6324252: United States 1950s: A doctor prepares and administers radioactive gallium to a bedridden patient / Bridgeman Images

AVE6324254: United States 1950s: A medical staff prepares to perform surgery on a cancer patient after finding the location of his tumor / Bridgeman Images

AVE6324256: United States 1950s: Ships power through waters and a car wheel spins as a car is in motion / Bridgeman Images

AVE6324258: 1970s: UNITED STATES: girl sits in classroom. / Bridgeman Images

AVE6324262: United States 1950s: In a laboratory, scientists produce radioactive materials / Bridgeman Images