The Universal Soil Loss Equation (USLE) was developed at the USDA National Runoff and Soil Loss Data Center at Purdue University in a national effort led by Walter H. Wischmeier and Dwight D. Smith. The USLE was published in 1965 in USDA Agriculture Handbook 282.
2003
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The Universal Soil Loss Equation for estimating average annual soil erosion.
2003
A = average annual soil loss (in tons/acre)
R = rainfall erosivity index
K = soil erodibility factor
LS = topographic factor
C = cropping factor
P = conservation practice factor Era_date_from:
The Rumely Companies, which operated in La Porte, Indiana, from 1853 to 1931, produced a variety of equipment including threshers and steam engines, which helped to change the nature of American and world agriculture. The revolutionary OilPull Tractor, which was introduced in 1910, used a unique carburetion system developed by John Secor, the Company's Chief Engineer. The OilPull tractor efficiently converted a low cost petroleum product to mechanical power, greatly reducing the need for animal and steam power on American farms. Dr.
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Courtesy Wikipedia/BulldozerD11 (CC BY-SA 3.0)
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2003
This site, originally the home of the Eclipse-Pioneer Division of the Bendix Aviation Corporation, has produced navigational instruments and engine components since 1938. Providing instruments that flew with Lindbergh across the Atlantic, and Admiral Byrd in the cold of Antarctica; from guiding American pilots in times of peace and war, to putting men on the moon, the “Bendix Invisible Crew” has been a leader in innovation and technology in the world of aviation and space exploration.
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RIM-8 Talos surface to air missile built by Bendix Corporation in test launcher at White Sands Missile Range New Mexico
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2003
Established in 1946 to provide a comprehensive test and evaluation site for tactical missiles, Point Mugu has been instrumental in the development, test, evaluation and in-service support of systems including Regulus, Sparrow, Phoenix, Bullpup, Harpoon, SLAM, Tomahawk, Standard, and Rolling Airframe Missile. The first missile launch from an operational submarine was also accomplished at Pt. Mugu.
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Aerial view of Naval Air Station Point Mugu — at Naval Base Ventura County, California, 2008
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2003
College Park Airport was founded in 1909 when the Wright Brothers came here to train the first military officers to fly in the givernment's first airplane. The airport is the oldest continuously operated airport in the world, and has come to be known as "The Field of Firsts" due to it being the location of a great number of groundbreaking achievements, such as:
1909: First woman passenger to fly in the United States
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An early pilot flying a Curtiss aircraft at College Park, 1912
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2003
The 1905 Wright Flyer III, built by Wilbur (1867-1912) and Orville (1871-1948) Wright, was the world's first airplane capable of sustained, maneuverable flight. Similar in design to their celebrated first airplane, this machine featured a stronger structure, a larger engine turning new "bent-end" propellers, and greater control-surface area for improved safety and maneuverability.
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Image Credit:
Public Domain (Copyright Expr.)
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Wright Flyer III
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1905
2003
The Tennessee State Capitol, the first and only home of the Tennessee General Assembly, was designed by engineer and architect William Strickland. Since its construction, it has ably served, with little modification, as the seat of Tennessee's government.
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Courtesy Flickr/Ron Cogswell
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Tennessee State Capitol
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1845
2003
The idea of creating a canal linking the Mediterranean Sea to the Red Sea is a very old one that dates back about 4000 years to the ancient Egyptians. They thought of linking the two seas by using the River Nile and its branches. It was this very old desire that led to the digging of the present Suez Canal.
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Courtesy Flickr/eutrophication&hypoxia (CC BY 2.0)
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Suez Canal Project
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1869
2003
Gainesville State: FL Zip: Country: USA Website: http://www.asme.org/about-asme/history/landmarks/topics-m-z/research-and-development/-223-solar-energy-and-energy-conversion-laboratory, https://www.asme.org/getmedia/6ab985e7-a7b5-4c91-b4d7-8c32af04334c/223-Solar-Energy-and-Energy-Conversion-Laboratory.aspx Creator: Farber, Erich
This highly diverse facility has pioneered the development of solar energy applications worldwide. The Solar Energy and Energy Conversion Laboratory (SEECL) was unique in developing practical solar energy devices based on established principles of thermodynamics, heat transfer, and fluid mechanics long before solar energy was considered a serious energy alternative.
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Courtesy ASME
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The SEECL was originally located at the Gianesville Regional Airport. Early experimental devices stood on the pad near the WW II bunker (early 1950s).
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1954
2003
This mechanism allowed the manual closing of a well, saved lives and prevented surface oil accumulation at drilling sites, quickly becoming an industry standard. In the early days of oilfield operations, there was no way to control the underground pressures encountered during drilling. When an oil or gas reservoir was tapped, wells were allowed to "blow out" until pressure was reduced sufficiently to allow capping. Many inventors attempted to develop a device to control such blowouts. In 1922, oil wildcatter James Smither Abercrombie (1891-1975) and machinist Harry S.
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Original Image: Flickr/Ed Schipul (CC BY-SA 2.0)
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A modern Blowout Preventer (BOP)
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1922
2003
Monroe Wall, Mansukh Wani and colleagues at the Natural Products Laboratory of the Research Triangle Institute discovered and elucidated the structure Taxol®and camptothecin, two life-saving compounds for the treatment of cancer. These natural products kill cancer cells via unique mechanisms of…
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"Benjamin Franklin, American electrician, printer, and diplomat, spent many years on Craven Street. He lived at No. 7 between 1772 and 1775 and at No. 36 from 1757-1762 and again from 1764-1772. During these years, Franklin popularized the study of electricity, performed experiments, and served as… Read More
Operated by the Philadelphia Electric Company (PECO), now known as Exelon Corp., Eddystone Station Unit #1 is a 325 MW pulverized-coal-fired plant that pushed the technology of steam-electric generating plants. When built in 1960, engineers sought to make a more efficient plant using higher…
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The Polymer Research Institute was established in 1946 by Herman F. Mark, a pioneer in the study of giant molecules. The Institute brought together a number of polymer researchers to create the first academic facility in the United States devoted to the study and teaching of polymer science.…
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This mechanism allowed the manual closing of a well, saved lives and prevented surface oil accumulation at drilling sites, quickly becoming an industry standard. In the early days of oilfield operations, there was no way to control the underground pressures encountered during drilling. When an oil… Read More
This highly diverse facility has pioneered the development of solar energy applications worldwide. The Solar Energy and Energy Conversion Laboratory (SEECL) was unique in developing practical solar energy devices based on established principles of thermodynamics, heat transfer, and fluid…
Read More
The idea of creating a canal linking the Mediterranean Sea to the Red Sea is a very old one that dates back about 4000 years to the ancient Egyptians. They thought of linking the two seas by using the River Nile and its branches. It was this very old desire that led to the digging of the present…
Read More
The Tennessee State Capitol, the first and only home of the Tennessee General Assembly, was designed by engineer and architect William Strickland. Since its construction, it has ably served, with little modification, as the seat of Tennessee's government.
For a relatively poor…
Read More
The 1905 Wright Flyer III, built by Wilbur (1867-1912) and Orville (1871-1948) Wright, was the world's first airplane capable of sustained, maneuverable flight. Similar in design to their celebrated first airplane, this machine featured a stronger structure, a larger engine turning new "bent-end…
Read More
College Park Airport was founded in 1909 when the Wright Brothers came here to train the first military officers to fly in the givernment's first airplane. The airport is the oldest continuously operated airport in the world, and has come to be known as "The Field of Firsts" due to it being the…
Read More
Established in 1946 to provide a comprehensive test and evaluation site for tactical missiles, Point Mugu has been instrumental in the development, test, evaluation and in-service support of systems including Regulus, Sparrow, Phoenix, Bullpup, Harpoon, SLAM, Tomahawk, Standard, and Rolling…
Read More
This site, originally the home of the Eclipse-Pioneer Division of the Bendix Aviation Corporation, has produced navigational instruments and engine components since 1938. Providing instruments that flew with Lindbergh across the Atlantic, and Admiral Byrd in the cold of Antarctica;…
Read More
The Rumely Companies, which operated in La Porte, Indiana, from 1853 to 1931, produced a variety of equipment including threshers and steam engines, which helped to change the nature of American and world agriculture. The revolutionary OilPull Tractor, which was introduced in 1910,…
Read More
The Universal Soil Loss Equation (USLE) was developed at the USDA National Runoff and Soil Loss Data Center at Purdue University in a national effort led by Walter H. Wischmeier and Dwight D. Smith. The USLE was published in 1965 in USDA Agriculture Handbook 282.
The USLE is…
Read More