EVB2941303: Richard Nixon and Spiro Agnew visit the LBJ Ranch on Aug. 19, 1968 / Bridgeman Images

EVB2941306: Lady Bird Johnson thanks Carol Channing and cast members after their White House performance of the hit Broadway musical, 'Hello Dolly'. Jan. 17, 1967 / Bridgeman Images

EVB2941345: LBJ's War on Poverty. President Lyndon Johnson signing the Poverty Bill (aka Economic Opportunity Act). Aug. 20, 1964 / Bridgeman Images

EVB2941351: LBJ's Great Society programs. President Lyndon Johnson with the many pens he will use to sign the Housing and Urban Development Act of 1965 / Bridgeman Images

EVB2941354: Lady Bird Johnson and young boy shoveling dirt during an Arbor Day Tree Planting. April 26, 1968 / Bridgeman Images

EVB2941360: Threshing wheat in central Ohio. A farmer forks wheat into the feeding belt of stationary threshing machine. He stands on a horse drawn wagon loaded with cut grain from the nearby field. August 1938 / Bridgeman Images

EVB2941363: Two men window shopping in Glen Echo, Maryland. 1939 / Bridgeman Images

EVB2937501: Al Capone's luxurious Florida estate was cited as evidence of his extravagant life style during his 1931 tax evasion trial / Bridgeman Images

EVB2937528: Under hot studio lights, a CBS News anchor performs under the director of his producer (seated between anchor and camera), for a color television camera in 1967 / Bridgeman Images

EVB2937540: Switchyard at TVA's Wilson Dam hydroelectric plant, near Sheffield, Alabama. A series of electrical transformers topped with ceramic insulators, transfer power from the generation system of the Wilson Dam to the distribution system that delivered power to consumers. 1942 / Bridgeman Images

EVB2937567: Oil gusher at Signal Hill in California near the Long Beach, one of the most productive oil fields in the world. 1920s, Unknown photographer, (20th century) / Bridgeman Images

EVB2937573: Loading an oil train in the Pennsylvania oil region. c. 1880, Unknown photographer, (19th century) / Bridgeman Images

EVB2937582: Windmills near Omsk, Siberia, in Imperial Russia Empire, 1885, Unknown photographer, (19th century) / Bridgeman Images

EVB2937597: Ernest Orlando Lawrence (1901-1958), won the 1939 Nobel Prize for Physics for the invention and development of the cyclotron. c. 1935 / Bridgeman Images

EVB2937609: Rivers of cables for the Dawn supercomputer at the Lawrence Livermore National Laboratory. 2009 / Bridgeman Images

EVB2937621: Satellite tracking antenna dish at Stanford University in Northern California, 2007 / Bridgeman Images

EVB2937627: A hand cranked device onsisting of coiled metal wire and a magnet, demonstrates the principle elements of 19th and 20th century electrical generators, also called dynamos. Illustration from DYNAMO-ELECTRICITY, 1884 by George B. Prescott / Bridgeman Images

EVB2937642: Charles P. Steinmetz (1865-1923), German-American mathematician and electrical engineer often worked in his canoe while boating in the upstate New York's Mohawk River / Bridgeman Images

EVB2937651: Samuel F. B. Morse (1791-1872), inventor of the magnetic telegraph. Steel engraving by John Sartan / Bridgeman Images

EVB2937660: Office of the Underwood Typewriter Company in Washington, D.C., c. 1910 / Bridgeman Images

EVB2937472: Abe Fortas, President Lyndon Johnson's nominee to the Supreme Court at the Senate Judiciary Committee in 1965. He was confirmed but failed conformation as LBJ's 1968 nominee for Chief Justice and was forced to resign in 1969 for accepted fees while serving on the high court / Bridgeman Images

EVB2937696: Army nurses lighting up their cigarettes in 1947, when smoking was seen as a simple pleasure rather than a health hazard / Bridgeman Images

EVB2937708: German delegates at Versailles listening to speech by French Prime Minister Clemenceau in 1919 (photo) / Bridgeman Images

EVB2937529: Interior of a 1940's refrigerator, Rosener, Ann (1914-2012) / Bridgeman Images

EVB2937762: Frank Stanton (1908-2006), President of CBS, speaking at a meeting of radio and television news directing in New York. October 16, 1959 / Bridgeman Images

EVB2937559: Oil rig workers, called roughnecks, at work, loosening sections of pipe on an drilling platform, Kilgore, Texas. 1939 Photo by Russell Lee, Russell, Lee (1903-86) / Bridgeman Images

EVB2937577: Four newly designed solar power collection dishes at Sandia National Laboratory in 2009. The new dishes are designed for high-volume production, ease of maintenance, and could be in commercial service by 2010 / Bridgeman Images

EVB2937589: Recreation of a gentile colonial American house with two women in colonial costume. 1913 photo by Wallace Nutting, Unknown photographer, (20th century) / Bridgeman Images

EVB2937670: Little girl smiles as she enjoys a radio program in the 1930s / Bridgeman Images

EVB2937530: New York City's Manhattan's skyline shrouded in darkness, is offset by the lights of a freighter at a Brooklyn pier. On November 9, 1965, the lights went out for 12 hours in the Northeast States and Canada / Bridgeman Images

EVB2937536: Electric lamps on display in a store in the Washington, D.C. area. c. 1920 / Bridgeman Images

EVB2937542: Workmen pose for a group portrait on the giant turbine in the powerhouse of the Bonneville Dam. c. 1937 / Bridgeman Images

EVB2937697: Drillers excavating the dam foundation on the Nevada site of Boulder dam, excavating the dam foundation. 1933 / Bridgeman Images

EVB2937700: Sailors in the National Maritime Union hiring hall for deck and engine hands, watching the board where the jobs are posted. New York, c. 1955 / Bridgeman Images

EVB2937599: Close-up of switches in the control room of Reactor B, the first large scale nuclear reactor ever built. Photo from the Hanford Site of the Manhattan Project, c. 1942-44 / Bridgeman Images

EVB2937733: 'Evacuation Sale' sign on a Japanese-American store in preparation for World War II relocation. Internees were given little notice and forced to abandon or sell their businesses at heavy losses / Bridgeman Images