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Caricature, Henriot1, public domain cartoon image
Tennessee Valley Authority. Construction of Douglas Dam. A new shift reports for duty at the TVA's new Douglas Dam on the French Broad River. This dam will be 161 feet high and 1,682 feet long, with a 31,600 acre reservoir area extending forty-three miles upstream. With a useful storage capacity of approximately 1,330,000 acre-feet this reservoir will make possible the addition of nearly 100,000 kilowatts of continuous power to the TVA system in dry years and almost 170,000 kilowatts in the average year
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The Broadway squad, New York's mounted police
The Broadway squad, New York's mounted police
JBM-HH police determined to curb traffic violations
[N.Y.C. - Broadway - mounted police clearing sidewalk]
The Broadway squad, New York's mounted police.
Police block traffic on the southbound Glenn Highway
Handling Crowds on Broadway - Public domain demonstration photograph
Proposed Rail Road for Broadway
A police officer stops traffic as service members march
How the police facilitate traffic at the Broadway crossings
Summary
Public domain photograph of car crash, accident, free to use, no copyright restrictions image - Picryl description
The automobile was first invented and perfected in Germany and France in the late 1890s. Americans quickly came to dominate the automotive industry after WWI. Throughout this initial era, the development of automotive technology was rapid. Hundreds of small manufacturers competing to gain the world's attention. Key developments included the electric ignition system, independent suspension, and four-wheel brakes. Transmissions and throttle controls were widely adopted and safety glass also made its debut. Henry Ford perfected mass-production techniques, and Ford, General Motors, and Chrysler emerged as the “Big Three” auto companies by the 1920s. Car manufacturers received enormous orders from the military during World War II, and afterward automobile production in the United States, Europe, and Japan soared.