Smithsonian Institution
National Air and Space Museum: Apollo Program
A comprehensive site focused on all of the Apollo missions. Includes details on launches and moon landings, with charts, statistics, and images. Especially interesting is the list of "Top Ten Apollo Results," which explains the major...
Pennsylvania Historical and Museum Comission
Explore Pa History: George Westinghouse
Read about George Westinghouse's invention, the train air brake, that revolutionized the safety of trains and train travel. Find out how the air brake worked and why it was such an important invention for the railroads.
PBS
Who Made America?: Innovators: George Westinghouse, Jr.
One-page profile of influential innovator, George Westinghouse, Jr., whose vision and ideas helped to increase the safety of the railroad system in America. His experimentation with electricity also had a huge impact on the power...
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