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.
TX
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Image Credit: Courtesy Flickr/Robert Nunnally (CC BY 2.0)Image Caption: Denison DamEra_date_from: 1943
1993
Cotton was once transported from farms to gins by wagons, trucks or trailers. Long waits to unload at the gin stalled harvests until haulers could return to the fields.
Professor Lambert Wilkes of the Department of Agricultural Engineering, Texas A&M University, developed the Cotton Module Builder between 1971 and 1974 with the support of J.K. (Farmer) Jones of Cotton Incorporated. The modules created by the Cotton Module Builder withstood weather, and after transport, the cotton could be easily fed into the gin. Dr.
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Image Credit: Photo by Beaver (Thomas John Macartney)Image Caption: The cotton module builder revolutionized the cotton industry.Era_date_from: 1971
2002
This is the earliest known survivor of an integrated cotton ginning system widely used to process cotton from wagon to bale in a continuous operation. The gin machinery was designed and built in 1914 by the Lummus Cotton Gin Company. It can process seven bales per hour. Five gin stands, stick machine, burr machine, separators, cleaners, press pump, and pneumatic conveying fans are driven by a 125-hp Bessemer oil engine. This gin ran commercially until 1974 and was restored to operating condition in 1993.
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Image Credit: Courtesy Flickr/John W. Schulze (CC BY 2.0)Image Caption: Burton Farmers Gin MillEra_date_from: 1914
1994
In its infancy, Hangar Nine housed Curtiss JN-4s ("Jennys") like the one Charles Lindbergh landed there when he reported for duty as a flying cadet in 1924.
As the U.S. was preparing to enter World War I, the Army raced to build an entire airfield, complete with 16 wooden hangars, successfully completing it in less than a year. The last remaining World War I facility of its kind, Hangar Nine at Brooks Air Force Base represents the emergence of fast-track construction methods using available materials and the skills of a local workforce.
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Image Credit: Public Domain (U.S. Air Force)Image Caption: Brooks AFB, Old Hangar 9Era_date_from: 1918
1998
This is one of the earliest uses of engineered water supply and irrigation systems in the United States. The first of eight original acequias was under construction in 1718 and two are still in operation. The remains of one are visible on the grounds of the Alamo. The Acequias of San Antonio are among the earliest engineered water supply and irrigation systems recorded in the United States. The Acequias served an integral role in the growth and stability of the San Antonio community for nearly 200 years.
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Image Credit: Courtesy: Flickr/Amy the Nurse (CC BY-ND 2.0) Image Caption: The Espada Aqueduct, running over the Piedras CreekEra_date_from: 1718
1968
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 over the wooden version then in use. Some 10,000 were built, in various configurations, the last in 1931. The Glengyle is original in its interior and most of its components.
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Image Credit: Courtesy ASMEImage Caption: Pullman Sleeping Car GlengyleEra_date_from: 1911
1987
The Southwest Research Institute Split-Hopkinson Pressure Bar apparatus is a mechanical test instrument used to characterize the dynamic response of materials at high strain rates (typical of impacts and explosions).
The apparatus, based on devices invented by Bertram Hopkinson and Herbert Kolsky, was developed at SwRI in 1962 by Dr. Ulric Lindholm. Initially created to evaluate the behavior of metals under various conditions, the SwRI Split-Hopkinson Pressure Bar has since been applied to a wide range of materials.
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Image Credit: Courtesy ASMEImage Caption: Split-Hopkinson Pressure Bar ApparatusEra_date_from: 1962
2006
The ABACUS II, designed and built by Texas Instruments, was the first practical automated production machine for the assembly of integrated circuits. Using heat and pressure, it bonded fine gold wire to microscopic contacts on the silicon chip and pin connections on the package.
The ABACUS II could maintain a positioning accuracy of ± 0.00025 inch while bonding up to 375 devices an hour. Following the success of this prototype, almost 1,000 ABACUS II wire bonders were built, making the economical mass production of integrated circuits a reality.
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Image Caption: ABACUS II Integrated-Circuit Wire BonderEra_date_from: 1972
1992
Innovations
