AVE6321329: 1960s: Mercury test space capsule takes off / Bridgeman Images

AVE6321356: United States, 1960s: Man building airplane engine / Bridgeman Images

AVE6321365: United States, 1960s: View of switching station / Bridgeman Images

AVE6321377: United States, 1960s: College graduation ceremony / Bridgeman Images

AVE6321413: United States, 1940s: A woman in an apron removing eggs from chicken coop as a man faces her taking notes on a clipboard / Bridgeman Images

AVE6321416: United States, 1940s: Long shot of a row of factory workers candling eggs, then a close up of one factory worker candling eggs / Bridgeman Images

AVE6321425: United States, 1940s: A hose deposits milk into a large vat / Bridgeman Images

AVE6322329: 1950s: People walk on school campus / Bridgeman Images

AVE6322332: United States, 1960s: Produce manager smiles / Bridgeman Images

AVE6322344: United States, 1960s: lady takes items from trolley / Bridgeman Images

AVE6322365: 1950s: Man drives tractor in field / Bridgeman Images

AVE6322371: 1920s: pies hits man in the face / Bridgeman Images

AVE6322374: 1950s: Construction site / Bridgeman Images

AVE6322434: United States, 1970s: Large building with columns has graffiti at base, young man climbs up to billboard and begins spray painting it, artistic shot of him spray painting the camera lens / Bridgeman Images

AVE6322443: United States, 1970s: A diverse group of students paint on canvases at desks and talk with the instructor and each other, young man scrubs at camera / Bridgeman Images

AVE6322482: United States, 1980s:computer model shows impacts of gravity on human brain / Bridgeman Images

AVE6322497: United States, 1950s: Animation of sound waves hitting ear, entering brain / Bridgeman Images

AVE6322506: United States, 1980s:scientists prepare experiments for astronauts in space / Bridgeman Images

AVE6322515: United States, 1980s: people walk through building in park / Bridgeman Images

AVE6324557: Researcher Assesses Ability of Clothing to Protect Farmer from Chemical Sprays / Bridgeman Images

AVE6322788: Construction worker sends up a bucket of hot tar to another worker / Bridgeman Images

AVE6327576: Puerto Rico, 1960s: Sugarcane on conveyor belt fed into processing machinery / Bridgeman Images

AVE6327600: Puerto Rico, 1960s: Teacher smiles at boy and girl in classroom / Bridgeman Images

AVE6327603: United States, 1970s: hole in mine shaft ventilation pipe / Bridgeman Images

AVE6327621: United States, 1930s: An astronaut gets out of his ship and wanders around in space / Bridgeman Images

AVE6327645: United States, 1950s: Scientist working on satellite / Bridgeman Images

AVE6327654: United States, 1950s: Close up of loudspeaker / Bridgeman Images

AVE6327699: 1970s: Students board school bus / Bridgeman Images

AVE6327714: United States, 1950s: A German jetpack is tested and fails to lift the user off the ground / Bridgeman Images

AVE6327720: United States, 1950s: American generals and committees discuss putting a satellite into orbit / Bridgeman Images

AVE6327732: United States, 1950s: A countdown is held before a German rocket is launched into space / Bridgeman Images

AVE6327741: United States, 1950s: Fuel is placed into a rocket to prepare for its launch / Bridgeman Images

AVE6327765: United States, 1990s: Time lapse of desert cliffs / Bridgeman Images

AVE6327768: United States, 1990s: View of Earth turning / Bridgeman Images

AVE6327771: United States, 1990s: Long shot of man on satellite dish / Bridgeman Images

AVE6327783: United States, 1990s: Train moves toward camera / Bridgeman Images