AVE6321325: 1960s: Test space capsule falls through the air, small parachute opens / Bridgeman Images

AVE6321553: Men Marching Through Fields / Bridgeman Images

AVE6321548: Allies Meet at Train Station / Bridgeman Images

AVE6323690: United States, 1960s: infant crash test dummy in car seat of vehicle / Bridgeman Images

AVE6323704: United States, 1960s: engineers work at drawings together / Bridgeman Images

AVE6323740: United States, 1970s: man covered in eggs talks to camera / Bridgeman Images

AVE6323767: United States, 1970s: children eat with chopsticks / Bridgeman Images

AVE6323817: United States, 1970s: children play in band / Bridgeman Images

AVE6323917: United States, 1940s: clouds in blue sky above sea shore / Bridgeman Images

AVE6324249: United States 1950s: Scientists make radioactive substances / Bridgeman Images

AVE6322498: United States, 1950s: Boys singing in choir / Bridgeman Images

AVE6322478: United States, 1950s: Animation of sound waves hitting listener / Bridgeman Images

AVE6322347: United States, 1960s: check out lady looks at cheese in hand / Bridgeman Images

AVE6322410: United States, 1970s: Young man spray paints a city wall with a heart while his girlfriend keeps a lookout / Bridgeman Images

AVE6320358: Unites States, 1970s: view of planet Earth from space / Bridgeman Images

AVE6320212: Europe, 1940s: Fire brigade on Thames in boat / Bridgeman Images

AVE6320363: Unites States, 1970s: rocks on seafloor / Bridgeman Images

AVE6320874: 1960s: Men sing into microphone as band plays in recording booth / Bridgeman Images

AVE6322357: 1950s: Bus driver stops bus and opens door / Bridgeman Images

AVE6322270: United States, 1940s: Military Planes Flying in Formation / Bridgeman Images

AVE6322359: 1950s: Children get onto school bus / Bridgeman Images

AVE6322797: A man uses two stacks of books on a table to demonstrate the multiple uses of a plane / Bridgeman Images

AVE6322809: A screw jack is used to describe the way a screw is used as an inclined plane that winds around and up a bar / Bridgeman Images

AVE6322815: Children playing on a merry-go-round, children chatting while riding bikes down a road with mountains in the background / Bridgeman Images

AVE6321060: 1950s: Boys pick up box, walk off screen / Bridgeman Images

AVE6324371: United States: 1950s: Illustration shows nuclear fallout stations. / Bridgeman Images

AVE6324220: United States 1950s: A scientist uses remote controls to operate robotic arms in a nuclear testing chamber / Bridgeman Images

AVE6324235: United States 1950s: Montage: A female radiologist reads the display on a radiology machine / Bridgeman Images

AVE6324259: United States 1950s: A family reacts to a video of an atomic bomb blowing up / Bridgeman Images

AVE6324631: 1910s: A couple walks away with a schoolgirl after wrapping a coat around her / Bridgeman Images

AVE6324637: United States, 1950s: immune response in cartoon / Bridgeman Images

AVE6324691: 1910s: Man approaches woman and observes her as she opens a gate, looking for something / Bridgeman Images

AVE6324570: Relative Toxicity of Insecticides' Journal Cover / Bridgeman Images

AVE6324648: United States, 1930s: Otoscope placed in ear of person sitting sideways / Bridgeman Images

AVE6324690: 1910s: Man knocks on door, woman answers and let him in / Bridgeman Images

AVE6320083: United States, 1960s: NASA astronauts smiling and joining as they go about tasks inside space capsule cabin / Bridgeman Images