Engineering Innovations
Displaying 521 - 540 of 682
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Poughkeepsie-Highland Bridge Poughkeepsie, NY |
A bridge across the Hudson at or near Poughkeepsie was planned starting in the early 1870s to primarily carry coal from the coalfields of northeastern Pennsylvania to New England… |
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Pratt & Whitney R-1340 Wasp Radial Engine Windsor Locks, CT |
Aircraft engines, considered unreliable during the first 20 years of aviation due to their need for liquid-cooling, heavy weight and other inconsistencies, were given a… |
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Pratt Institute Power Plant Brooklyn, NY |
Steam and the inexpensive electricity it could produce brought about dramatic technical growth in the United States. Developed during the last century, reliable and efficient… |
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Prehistoric Mesa Verde Reservoirs Montezuma County, CO |
Four prehistoric reservoirs at Mesa Verde National Park were constructed and used between AD 750 and AD 1180. They are: Morefield Reservoir (in Morefield Canyon), Far View… |
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Pullman Sleeping Car Glengyle Dallas, TX |
The Glengyle is the earliest known survivor of the fleet of heavyweight, all-steel sleepers built by Pullman Company. The design was introduced in 1907 as a marked improvement… |
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Purdue University Airport West Lafayetta, IN |
The Purdue University Airport was the first collegiate owned airport in the United States. It hosted Amelia Earhart for her final adventure, was the training ground for test… |
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Quebec Bridge Quebec City, Quebec |
The bridge is immense, not only in length and weight but in width. At 67 feet wide, it can accommodate two sets of railway tracks, two sets of streetcar tracks and two roadways.… |
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Queensboro Bridge Long Island City, NY |
When opened in 1909, the Queensboro Bridge had the two longest steel cantilever spans in the world - 1,182 feet from Manhattan to Blackwell's Island and 984 feet from Blackwell's… |
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Quincy Mining Company No. 2 Mine Hoist Hancock, MI |
The largest mine hoist in the world, it serves the two incline skipways of Shaft No. 2, almost 9,300 feet long. The overhead winding drum has a diameter of 30 feet, of which the… |
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Radio City Music Hall Hydraulically Actuated Stage New York, NY |
The precision "choreographed" staging of Radio City Music Hall offers size and versatility, unlike any other. Built in 1932 by Peter Clark, its innovative elevator system is a… |
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Rain Bird Impact Drive Sprinkler Head Azusa, CA |
The Rain Bird horizontal action impact drive sprinkler head was invented in 1933 by Orton Englehardt, a citrus grower and native of Glendora. The design offered slow rotation and… |
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Reaction Motors, Inc. Denville, NJ |
The first company in the United States dedicated solely to the production of the liquid rocket engine, Reaction Motors, Inc. (RMI) was formed in 1941. Its four founders were… |
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Red Hill Underground Fuel Storage Facility Aie, HI |
Conceived in the early years of World War II as a plan to bury four fuel containers horizontally in a hillside at the U.S. Navy facility at Pearl Harbor, Hawaii, the Red Hill… |
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Reed Gold Mine Ten-Stamp Mill Midland, NC |
The first authenticated discovery of gold in the U.S. occurred on the Cabarrus County farm of John Reed in 1799, sparking the nation's first gold rush. During its peak years, more… |
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Refrigeration Research Museum Brighton, MI |
This collection includes many examples of advances in mechanical refrigeration for residential and commercial applications, dating from about 1890 to 1960. Such devices… |
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Rensselaer Polytechnic Institute Troy, NY |
Amos Eaton and Stephen Van Rensselaer founded the Rensselaer School for "the application of science to the common purposes of life" in 1824. Eaton had practiced surveying as a… |
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Research on the Atomic Weight of Oxygen by Edward W. Morley Cleveland, OH |
In his laboratory at Western Reserve University (Now Case Western Reserve University), Edward W. Morley carried out his research on the atomic weight of oxygen that provided a new… |
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Reuleaux Collection of Kinematic Mechanisms Ithica, NY |
Kinematics is the study of geometry of motion. Reuleaux designed the models in the Cornell collection as teaching aids for invention, showing the kinematic design of machines. The… |
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Reversal of the Chicago River Chicago, IL |
Until 1900, the Chicago River drained into Lake Michigan, along with all the sewage from the city; and the Des Plaines River west of Chicago emptied into the Illinois River, which… |
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Reynolds-Corliss Pumping Engine Jacksonville, FL |
Installed alongside an Epping Carpenter pump that was later scrapped, this water pump was built by Allis-Chalmers, which for many years had Edwin Reynolds as its chief engineer.… |
