AVE6328086: United States, 1960s: two men look at model of solar system / Bridgeman Images

AVE6328092: United States, 1960s: Close up of man's face / Bridgeman Images

AVE6328107: United States, 1960s: Rotating Earth in sky / Bridgeman Images

AVE6328110: United States, 1960s: Animation of surface of sun / Bridgeman Images

AVE6328122: Europe, 1940s: boy stands by wall / Bridgeman Images

AVE6329047: United States, 1930s-1940s: A worker eats a pastry while looking at a book in another worker's hands / Bridgeman Images

AVE6329059: United States, 1930s-1940s: A white hot ingot slides down onto a conveyer belt / Bridgeman Images

AVE6329065: United States, 1930s-1940s: A medium shot of a factory floor with large machines / Bridgeman Images

AVE6329095: United States, 1930s-1940s: A factory worker affixes an engine part to a v8 engine block as it moves down a conveyor belt / Bridgeman Images

AVE6329104: United States, 1930s-1940s: Two factory workers place a steel sheet onto a press that shapes it into the form of a car exterior / Bridgeman Images

AVE6329146: After feeding animals, a farmer and his wife drive out in a convertible / Bridgeman Images

AVE6329161: People walk in different settings as cars drive through a highway / Bridgeman Images

AVE6329030: United States, 1960s: View of hand sander / Bridgeman Images

AVE6329185: 1940s: Men empty net and throw net back into water / Bridgeman Images

AVE6329072: United States, 1930s-1940s: A factory worker weighs v8 engine pistons and places them beside him, where another employee places the pistons on a conveyer belt / Bridgeman Images

AVE6328149: Europe, 1940s: hunger title / Bridgeman Images

AVE6329302: UNITED STATES 1960s: Montage of images. / Bridgeman Images

AVE6328194: UNITED STATES: 1981: Space shuttle detaches from scaffolding as it launches. / Bridgeman Images

AVE6328209: Europe, 1940s: repaired roof on building / Bridgeman Images

AVE6329147: A lady spends time in a park to enjoy flowers / Bridgeman Images

AVE6328245: Europe, 1940s: malnourished baby cries in crib / Bridgeman Images

AVE6328266: UNITED STATES: 1981: View of Earth and clouds as space shuttle enters Earth's atmosphere / Bridgeman Images

AVE6328269: UNITED STATES: 1981: View of clouds and ocean as space shuttle falls back to Earth / Bridgeman Images

AVE6328305: 1980s: Man sits in chair talking / Bridgeman Images

AVE6329237: 1940s: Boats docked in harbor / Bridgeman Images

AVE6328314: Russia, 1950s: lady sits and listens / Bridgeman Images

AVE6329267: UNITED STATES 1960s: Close up, man looks through viewer. / Bridgeman Images

AVE6328326: 1980s: President John F / Bridgeman Images

AVE6329300: UNITED STATES 1960s: Montage of cars. / Bridgeman Images

AVE6328335: 1980s: Man wears headset / Bridgeman Images

AVE6329312: 1950s: Boys look at electronics store display window / Bridgeman Images

AVE6329347: Man at Podium Speaks to Audience / Bridgeman Images

AVE6329333: Family Sit Around Television Monitor at Home / Bridgeman Images

AVE6329383: Printing Press Printing Papers / Bridgeman Images

AVE6329402: 1950s: Restless husband flips through book / Bridgeman Images

AVE6329615: Employment Programmes for Youth in America / Bridgeman Images