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 Underground Fuel Storage Facility ultimately encompassed the design and construction of 20 vertical storage tanks - each large enough to contain a 20-story building - buried in the volcanic hillside and connected by tunnels to a harbor-side pumping station more than two-and-a-half miles away.
1943
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Image Credit:
Courtesy Wikicommons/Leslie Nelson (CC BY-SA 4.0)
Image Caption:
Above-ground fuel storage tanks at Pearl Harbor prior to the construction of Red Hill.
Era_date_from:
1943
1994
"The development of the cotton picker was the most important single factor which enabled the American cotton industry to stay alive," observed Dr. George S. Buck, Jr., director of research for the National Cotton Council recenty.
Some 96% of the 1969 U.S. cotton crop was harvested by machines, points out J.W. Wegener, manager of International Harvester's Memphis Works manager.
"Old Red" was built by International Harvester in 1943, retired in 1959, and restored in 1964.
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Image Credit:
Photo Courtesy of ASABE
Image Caption:
"Old Red" now resides in the National Museum of History & Technology, Smithsonian Institution, Washington, DC.
Era_date_from:
1943
1978
The largest rolled-earth fill dam in the world at the time of its completion, Denison Dam eventually served as a prototype for dam construction in future U.S. Army Corps of Engineers projects throughout the arid plains of the American Southwest. Procedures and equipment developed during its construction are now commonplace in the sampling and testing of soils.
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Image Credit:
Courtesy Flickr/Robert Nunnally (CC BY 2.0)
Image Caption:
Denison Dam
Era_date_from:
1943
1993
All building materials were made fire-resistant to protect against incendiary bombing. Treatment involved a vacuum process of salt impregnation. During construction, high winds caused a partial collapse of some members. The ruined materials were piled for incineration, but would not burn; so the rubble was buried on site. Years later, a farmer leasing ground on the site plowed up some of the materials. They were reported to still be in good condition.
YearAdded:
Image Credit:
Courtesy Wikipedia/Lordkinbote (CC BY-SA 2.0)
Image Caption:
Hangar No. 2
Era_date_from:
1943
1993
The 4,620-horsepower GG1 was primarily a passenger locomotive, routinely operating at over 100 miles per hour, but was used in freight service as well. Conceived by the Pennsylvania Railroad and built by the Baldwin Locomotive Works and General Electric Company, No. 4800 logged nearly 5 million miles in its forty-five-year life. It was the prototype for a 139-unit fleet built during a decade to serve on the PRR's electrified lines, and the only one with a riveted body shell; the remainder were welded.
YearAdded:
Image Credit:
Courtesy Wikipedia/dmb201
Image Caption:
Penn. RR GG1 Electric Locomotive #4800
Era_date_from:
1943
1983
During the 1930's, research into advanced ballistic measurement techniques began at Aberdeen Proving Ground—the world's first large-scale, fully-instrumented ballistic range producing data on the aerodynamic characteristics of missiles in free flight.
YearAdded:
Image Credit:
Courtesy U.S. Army RDECOM
Image Caption:
High Explosive shells at Aberdeen Proving Ground
Era_date_from:
1943
1982
During the 1930's, research into advanced ballistic measurement techniques began at Aberdeen Proving Ground—the world's first large-scale, fully-instrumented ballistic range producing data on the aerodynamic characteristics of missiles in free flight.
Although this research had begun…
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The 4,620-horsepower GG1 was primarily a passenger locomotive, routinely operating at over 100 miles per hour, but was used in freight service as well. Conceived by the Pennsylvania Railroad and built by the Baldwin Locomotive Works and General Electric Company, No. 4800 logged nearly 5 million…
Read More
All building materials were made fire-resistant to protect against incendiary bombing. Treatment involved a vacuum process of salt impregnation. During construction, high winds caused a partial collapse of some members. The ruined materials were piled for incineration, but would not burn; so the…
Read More
The largest rolled-earth fill dam in the world at the time of its completion, Denison Dam eventually served as a prototype for dam construction in future U.S. Army Corps of Engineers projects throughout the arid plains of the American Southwest. Procedures and equipment developed during…
"The development of the cotton picker was the most important single factor which enabled the American cotton industry to stay alive," observed Dr. George S. Buck, Jr., director of research for the National Cotton Council recenty.
Some 96% of the 1969 U.S. cotton crop was harvested by machines,… Read More
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 Underground Fuel Storage Facility ultimately encompassed the design and construction of 20 vertical storage tanks - each…
Read More