AVE6322039: United States, 1950s: Invitation to Firestone Exhibition / Bridgeman Images

AVE6322040: United States, 1950s: Long shot of rubber plantation / Bridgeman Images

AVE6322056: United States, 1950s: Views of audience at circus / Bridgeman Images

AVE6322057: United States, 1950s: Views of audience at circus / Bridgeman Images

AVE6322076: United States, 1950s: Woman balancing on trapeze / Bridgeman Images

AVE6322124: 1940s: Men in heavy coats and mittens row boat through fjord / Bridgeman Images

AVE6322128: 1940s: Power windlass pulls fish and nets onto boat / Bridgeman Images

AVE6322158: 1980s: Wright brothers reenactor pull their flying machine to the top of a hill and then run down with it / Bridgeman Images

AVE6322160: 1980s: A man examines and shapes a model of an airplane / Bridgeman Images

AVE6322165: 1980s: A machine writes data on graph paper / Bridgeman Images

AVE6322169: 1940s: Long racks of drying fish on docks of fjord / Bridgeman Images

AVE6322174: 1980s: A 1960s U.S Army aircraft is wheeled in to a field / Bridgeman Images

AVE6322175: 1980s: Two men discuss the design of an airplane model / Bridgeman Images

AVE6322184: 1980s: A man talks into a radio, sitting next to a woman wearing headphones / Bridgeman Images

AVE6322185: 1980s: NASA and Federal Aviation Administration automatic all weather control station / Bridgeman Images

AVE6322186: 1980s: A man wearing a headset sits at the controls of a flight simulator and speaks into his microphone / Bridgeman Images

AVE6322188: USA, 1950s: Man doing a pull up on a bar / Bridgeman Images

AVE6322189: USA, 1950s: Two glass jars, one containing a lit candle that goes out when oxygen is used up / Bridgeman Images

AVE6322200: USA, 1950s: Man blowing into a test tube of water through a straw / Bridgeman Images

AVE6322205: 1980s: A pilot drives his small aircraft down a runway / Bridgeman Images

AVE6322207: USA, 1950s: Man using a ruler to draw a line on a graph / Bridgeman Images

AVE6322209: 1980s: A research helicopter flies / Bridgeman Images

AVE6322213: USA, 1950s: Cows grazing in field under trees / Bridgeman Images

AVE6322216: 1980s: View from a plane flying in a loop / Bridgeman Images

AVE6322227: USA, 1950s: Two vials, one holding normal blood, the other holding anemic blood / Bridgeman Images

AVE6322242: United States, 1940s: Cows Eating Corn on Farm / Bridgeman Images

AVE6322249: United States, 1940s: Farm Buildings Fall Down Due to Lack of Money / Bridgeman Images

AVE6322251: United States, 1940s: Terraces in a Field / Bridgeman Images

AVE6322253: United States, 1940s: Farm Machines at Work in the Field / Bridgeman Images

AVE6322255: United States, 1940s: Pigs on a Farm / Bridgeman Images

AVE6322258: United States, 1940s: Hay Bales in a Field / Bridgeman Images

AVE6322259: United States, 1940s: Workers Pick Corn in a Field / Bridgeman Images

AVE6322261: United States, 1940s: Ladies Picking Beans in a Field / Bridgeman Images

AVE6322264: United States, 1940s: Milk Production Line in a Factory / Bridgeman Images

AVE6322269: United States, 1940s: Bomber Taking Off / Bridgeman Images

AVE6322299: 1950s: Playground / Bridgeman Images