AVE6326052: United States, 1950s: Scientist opens lead vault / Bridgeman Images

AVE6326070: United States, 1950s: Man inserts part into cyclotron / Bridgeman Images

AVE6326082: Man walks Lady to Her House Along Railway Tracks / Bridgeman Images

AVE6326086: United States, 1950s: Aerial view of plane / Bridgeman Images

AVE6326099: Lady Puts Bag on Office Floor and Takes Out a Key / Bridgeman Images

AVE6326102: Two Men Look at Lady Through Window / Bridgeman Images

AVE6326111: Steam Engine Rushes Along Tracks as Burglars Try to Break in to Station Office / Bridgeman Images

AVE6326114: Train Driver Rushes to Aid of Lady in Distress as Two Men Try to Break in to Office / Bridgeman Images

AVE6326142: 1980s: Jetliner takes off from runway / Bridgeman Images

AVE6326149: 1980s: Smoke is blown into hangar and test plane taxis through it, creating jet streams / Bridgeman Images

AVE6326159: 1980s: Bi-plane dusts field of crops / Bridgeman Images

AVE6326162: 1980s: Model plane in wind tunnel / Bridgeman Images

AVE6326174: 1980s: Airplane lands on runway / Bridgeman Images

AVE6326177: 1980s: Man stands in front of airplane and computer monitor, talking, while pointing at monitor / Bridgeman Images

AVE6326226: 1970s: Underwater view, underside of diving station / Bridgeman Images

AVE6326241: India, c.1930: A man leads Gandhi down a road while a few onlookers bow to him / Bridgeman Images

AVE6326247: 1970s: View of diving station from ship, men on station / Bridgeman Images

AVE6326250: 1970s: High angle view of diving station / Bridgeman Images

AVE6326259: 1970s: Long shot, boat towing diving station / Bridgeman Images

AVE6326265: 1970s: Diver jumps from boat / Bridgeman Images

AVE6326271: India, c.1930: Gandhi speaks to smiling reporters / Bridgeman Images

AVE6326280: 1970s: Diver swimming / Bridgeman Images

AVE6326325: United States, 1960s: Police officers seal off surrounding area of disturbance as protesters damage a car / Bridgeman Images

AVE6328328: Russia, 1950s: man talks to crowd from microphones / Bridgeman Images

AVE6328334: 1980s: The moon slowly passes by / Bridgeman Images

AVE6328337: 1980s: Rocket and launching platform are wheeled into position / Bridgeman Images

AVE6328358: Russia, 1950s: man in factory waves / Bridgeman Images

AVE6328382: 1980s: Illustration of a satellite / Bridgeman Images

AVE6328400: Russia, 1950s: man reads to students in classroom / Bridgeman Images

AVE6328409: Russia, 1950s: view across square to buildings / Bridgeman Images

AVE6328415: Girl Pours Cleaning Fluid on Doll's Dress / Bridgeman Images

AVE6328463: United States, 1960s: police officer talks to men after presentation in classroom / Bridgeman Images

AVE6328481: United States, 1960s: police car drives on road / Bridgeman Images

AVE6328487: United States, 1960s: ambulance arrives by car in street at night / Bridgeman Images

AVE6328502: United States, 1960s: police man cuts umbilical cord / Bridgeman Images

AVE6328565: United States, 1960s: Group of singers on set, sing into camera / Bridgeman Images