AVE6326810: United States, 1960s: Working writers at the office pass their articles to be proofread by editor. / Bridgeman Images

AVE6326819: United States, 1960s: Men at work organize printing plates to be used for printing articles. / Bridgeman Images

AVE6326832: 1930s: UNITED STATES: Man milks Jersey cow. / Bridgeman Images

AVE6326844: 1930s: UNITED STATES: surface cooling of milk. / Bridgeman Images

AVE6326857: 1950s: Propeller plane taxis on runway / Bridgeman Images

AVE6326859: 1950s: Pilot grips yoke of plane and struggles to control it / Bridgeman Images

AVE6326862: 1950s: Woman sitting in backyard hands newspaper to man and starts to stand / Bridgeman Images

AVE6326874: 1930s: Table with headers “Grammar School”, “High School”, “College” is divided diagonally, animated hand peels bottom of the chart, image of industrial mining appears / Bridgeman Images

AVE6326877: 1950s: Man launches weather balloon into stormy skies / Bridgeman Images

AVE6326878: 1930s: Several workers walk in a line outside of factory complex / Bridgeman Images

AVE6326880: 1950s: Man at radar takes notes / Bridgeman Images

AVE6326882: 1930s: Several women sit and work in line next to big wheels with cables in a factory / Bridgeman Images

AVE6326884: 1930s: Men operate machine in a cannery, a man stacks cans, the other packs them / Bridgeman Images

AVE6326886: 1950s: Man stands at map explaining likely trajectory of hurricane landfall / Bridgeman Images

AVE6326887: 1930s: Men operate industrial machines in a factory / Bridgeman Images

AVE6326897: 1950s: Family evacuates beach house with suitcases and get into car / Bridgeman Images

AVE6326908: 1930s: Workers in a factory / Bridgeman Images

AVE6326912: 1930s: Man shakes head, talks to man who sits at desk in an office / Bridgeman Images

AVE6326915: 1930s: Factory workers punch card on time clock / Bridgeman Images

AVE6326923: United States, 1950s: Acropolis in Italy / Bridgeman Images

AVE6326940: United States, 1950s: men talk in office / Bridgeman Images

AVE6326947: United States, 1960s: trees outside building / Bridgeman Images

AVE6326948: 1960s: Boy yawning in crowd / Bridgeman Images

AVE6326954: United States, 1950s: schematic of electronic picture tube / Bridgeman Images

AVE6326960: United States, 1950s: Empire State Building view / Bridgeman Images

AVE6326125: United States, 1950s: Men with binoculars / Bridgeman Images

AVE6326126: 1980s: The wheels of a jet landing / Bridgeman Images

AVE6326127: United States, 1950s: Views of nuclear blast in desert / Bridgeman Images

AVE6326132: 1980s: Two halves of machine come together and two men clamp it shut / Bridgeman Images

AVE6326135: 1980s: Needle on scale moves / Bridgeman Images

AVE6326136: 1980s: Man on airport runway signals to jetliner taxiing in to stop / Bridgeman Images

AVE6326137: 1980s: Test vehicle is launched down runway / Bridgeman Images

AVE6326160: 1980s: Man starts engine for small prop plane by hand, then raises rear landing gear, climbs into cockpit, closes canopy and taxis away / Bridgeman Images

AVE6326167: 1980s: Airplane flies through air then begins doing a spiral dive / Bridgeman Images

AVE6326168: 1980s: Airplane does a spiral dive through air / Bridgeman Images

AVE6326171: 1980s: Man drops model airplane into wind tunnel where it does a spiral dive / Bridgeman Images