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EVB2930886: Electricty. Westinghouse AC generator. At the time of completion (1898), it generated three-phase AC power at a pressure of 40,000 volts, the highest voltage of any commercial electric power system in the world. Telluride Power Company, Nunn Hydroelectric Plant, Utah, 1898 / Bridgeman Images
EVB2930272: Two newsboys, from original caption: 'The boy with bag, nicknamed Turk, said he was going to Texas soon. The investigator found him recently with .75 he had just won at craps' St. Louis, Missouri, photograph by Lewis Wickes Hine, May, 1910, Hine, Lewis Wickes (1874-1940) / Bridgeman Images