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Engineering Innovations

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Pullman Sleeping Car Glengyle 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…
Part of the Purdue Cirrus training fleet on the ramp 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…
Quebec Bridge 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.…
Queensboro Bridge 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…
Quincy Mining Company No. 2 Mine Hoist 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…
Radio City Music Hall Hydraulically Actuated Stage 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…
Rain Bird Impact Drive Sprinkler Head 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…
James Hart Wyld 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…
Red Hill Underground Fuel Storage Facility 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…
Reed Gold Mine Ten-Stamp Mill 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…
Refrigeration Research Museum 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…
Russell Sage Laboratory 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…
Morley with students and instructors, ca. 1893. 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…
Reuleaux Collection of Kinematic Mechanisms 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…
Chicago Sanitary and Ship Canal 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…
Reynolds-Corliss Pumping Engine 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.…
River des Peres Sewage & Drainage Works River des Peres Sewage & Drainage Works
St. Louis, MO
In 1915, a tropical storm dropped nearly 11 inches of rain on St. Louis in just 17 hours, causing a devastating flood. Claiming 11 lives and the homes of 1,025 families, the flood…
RL-10 Rocket Engine RL-10 Rocket Engine
Washington, DC
The RL-10, which served as the power plant for NASA's upper-stage Centaur space launch vehicle, was the first rocket engine to use high-energy liquid hydrogen as a fuel. It has…
Rocketdyne's_test_stand_for_testing_the_J-2_engine_in_Santa_Susana_Mountains Rocketdyne Santa Susana Field Laboratory
Brandeis, CA
On 15 November 1950, the SSFL conducted its first official test with a Rocketdyne-designed XLR43-NA-1 large liquid propellant rocket engine, which later became the Redstone engine…
Rockville Stone Arch Bridge Rockville Stone Arch Bridge
Marysville, PA
The third bridge built on the same site to carry railroad tracks across the Susquehanna River just north of Harrisburg, Pennsylvania, the Rockville Stone Arch Bridge, at 3,820…

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