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Engineering Innovations

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Title Description
Soil Compaction Criteria Soil Compaction Criteria
Auburn, AL
Historically, Farm Tillage Tools Were Designed Without Scientific Knowledge Of How Tools Work The Soil. Thus, A Tool Designed To Operate In One Soil Pulled By A Mule Might Not…
Solar Energy and Energy Conversion Laboratory Solar Energy and Energy Conversion Laboratory
Gainesville, FL
This highly diverse facility has pioneered the development of solar energy applications worldwide. The Solar Energy and Energy Conversion Laboratory (SEECL) was unique in…
Southern Pacific #4294 Cab-in-Front Steam Locomotive Southern Pacific #4294 Cab-in-Front Steam Locomotive
Sacramento, CA
The articulated wheel-base steam locomotive represents the final phase of steam locomotive development in size and power. The cab-in-front feature was widely used by the Southern…
Southern Railway Spencer Shops Southern Railway Spencer Shops
Spencer, NC
A majority of the buildings, used originally in steam locomotive repair and maintenance, are still intact, including the backshop (erecting shop), roundhouse, flue shop, paint…
Split-Hopkinson Pressure Bar Apparatus Split-Hopkinson Pressure Bar Apparatus
San Antonio, TX
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…
Springfield Armory Springfield Armory
Springfield, MA
George Washington's concern over standardization of rifles for the Continental Army led to the formation of national armory and to his selection of Springfield as its site.…
SS Badger Carferry SS Badger Carferry
Ludington, MI
The two 3,500-hp steeple compound Unaflow steam engines powering the S.S. Badger represent one of the last types of reciprocating marine steam engines. Built by the Skinner Engine…
SS Great Britain SS Great Britain
Bristol,
The innovative SS Great Britain, launched in 1843, was the first iron-hulled, screw-propelled ship to cross any ocean and led mercantile history into British domination in the…
SS Jeremiah O'Brien SS Jeremiah O'Brien
San Francisco, CA
The SS Jeremiah O'Brien, an emergency cargo vessel of the type EC2-S-C1 better known as Liberty Ships, is one of two operative survivors of 2,751 ships, the largest fleet of…
St. Charles Avenue Streetcar Line St. Charles Avenue Streetcar Line
New Orleans, LA
The St. Charles Avenue Streetcar Line is the oldest surviving interurban-urban passenger rail transportation system in the United States. Originally incorporated as the New…
St. Clair Tunnel St. Clair Tunnel
Sarnia, ON
A Day's Pay According to tunnel records, the following pay rates were established for the 600-700 laborers required for this project:  17.5 cents per hour for diggers…
Stanford Linear Accelerator Center Stanford Linear Accelerator Center
Menlo Park, CA
The Stanford Linear Accelerator Center was renamed in 2009 to the SLAC National Accelerator Laboratory. Notable for: unique electromechanical devices and systems in the longest…
Stanford Linear Accelerator Center (SLAC) Stanford Linear Accelerator Center (SLAC)
Portola Valley, CA
The basic research tool at SLAC is an intense beam of electrons that have been accelerated by an electric field equivalent to 30 billion volts, making this the most powerful…
Starrucca Viaduct Starrucca Viaduct
Lanesboro, PA
The Starrucca Viaduct of the Erie Railroad Company crosses Starrucca Creek in Lanesboro, Pennsylvania. It is one of the oldest and one of the longest railroad bridges in…
Statue of Liberty Statue of Liberty
Brooklyn, NY
Sculptor Frederic-Auguste Bartholdi is credited with bringing the concept of the Statue of Liberty to fruition, deriving inspiration from the 19th-century penchance for grandiose…
Stereolithography
Rock Hill, SC
Although the origins of three-dimensional printing date back to the mid 19th century, and the first patent application for rapid prototyping technology was filed by Dr. Hideo…
Stevens Pass Railroad Tunnels & Switchback System Stevens Pass Railroad Tunnels & Switchback System
Stevens Pass, WA
In the years following the Civil War, the land west of the Mississippi River was being settled and the Pacific Northwest explored. There remained, however, a large portion of…
Suez Canal Project Suez Canal Project
Ismailia,
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…
Sweetwater Dam Sweetwater Dam
Chula Vista, CA
When completed in 1888 to a height of 90 feet, Sweetwater Dam was once the tallest masonry arch dam in the United States, and it led to many others of the same basic design. The…
Sydney Harbour Bridge Sydney Harbour Bridge
Milsons Point, NSW
The design of the Sydney Harbour Bridge closely resembles the Hell Gate Bridge over the East River in New York City, conceived in 1916 by noted engineer Gustav Lindenthal and his…

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