The first commercial central electric-generating station in the United States to use nuclear energy was the Shippingport Atomic Power Station of the Department of Energy and the Duquesne Light Company. In a dramatic high-tech display, ground was broken in 1954 during dedication ceremonies by President Dwight D. Eisenhower, who also opened it on May 26, 1958, as part of his "Atoms for Peace" program. Shippingport is located on the Ohio River about 25 miles from Pittsburgh.
USA
Shippingport State: PA Zip: 15050 Country: USA Website: http://www.asme.org/about-asme/history/landmarks/topics-a-l/electric-power-production-nuclear/-47-shippingport-nuclear-power-station-%281958%29, https://www.asme.org/getmedia/c64a220f-030c-4384-8336-7d9857248322/47-Shippingport-Nuclear-Power-Station.aspx Creator: Duquesne Light Company
Sewall's Bridge is a singular example of an era when wooden trestle bridges carried highway traffic across New England waterways. It is the earliest pile-trestle bridge for which an authentic construction record exists, and the oldest for which builder's drawings survive. Spanning the York River, it was named for Major Samuel Sewall, Jr., the civil engineer who designed and constructed it.
The Second Street Bridge is a simply ornamented, wrought-iron structure. It is 18 feet wide and spans 225 feet over the Kalamazoo River. It was built to replace a dilapidated wooden bridge that had served the area for nearly 50 years.
The bridge is anchored to fieldstone abutments on each shore, and the deck is composed of wood beams. Iron lattice work provides structural stability and iron finials on the end posts provide aesthetic appeal. It includes a wooden pedestrian walkway.
The Savannah city plan, whose execution began in 1733, is distinguished from those of previous colonial towns by the repeated pattern of connected neighborhoods, multiple squares, streets, and designed expansion into lands held by the city. It is unique in the history of urban planning in a number of aspects, not the least of which is that the squares allow for more open space in Savannah than any city layout in history.
Located at the northern tip of Michigan where Lake Superior, Lake Michigan, and Lake Huron join together, the Sault Ste. Marie Hydroelectric Power Complex was built to harness the hydroelectric potential of the 20-foot falls at the headwaters of the St. Marys (sic) River, the sole outlet of Lake Superior. A century after its construction, the plant remains the largest low-head hydroelectric facility in the United States. Today, the Sault Ste. Marie plant supplies electricity to area residents, especially those in the Upper Peninsula of Michigan.
The San Jacinto Monument commemorates the decisive 1836 battle near the banks of the Buffalo Bayou and the San Jacinto River that allowed Texas to win independence from Mexico. It is the world's tallest monument, rising 15 feet higher than the Washington Monument.
In 1936, Daughters and Sons of the Republic of Texas led lobbying efforts to allocate funds for a monument that would mark the importance of the Battle of San Jacinto. Ground was broken on April 21, 1936 - 100 years to the day after the victorious battle.
Beginning with the blacksmith shop of German immigrant Meinrad Rumely (1823-1904), this successive family of firms invented and produced a line of agricultural equipment that played a vital role in the evolution of farming based on the muscle of humans and animals to one based on the power of the steam and ultimately the internal-combustion engine. The M. & J. Rumely Co. became the M. Rumely Co., and then the Advance Rumely Co. The Allis-Chalmers Company acquired the business in 1931.
Designed to connect the Shenandoah National Park in Virginia and the Great Smokey Mountains National Park in North Carolina, the Blue Ridge Parkway was planned to provide pleasant motoring and to conserve and interpret the unique natural and cultural resources of the Southern Highlands. It was conceived also as a public works project to relieve unemployment in the Appalachian region during the Great Depression.
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 feet long and 52 feet wide, is believed to be the longest and widest stone-arch railroad bridge in the world. A central link in rail travel between New York City and Pittsburgh, the Rockville Stone Arch Bridge accommodates four lines of railroad tracks, today serving both the Norfolk Southern and Amtrak lines.
In 1897, Dr. Alice Hamilton (1869-1970) came to Hull-House, a social settlement founded to address the needs of immigrants living on Chicago’s Near West Side. Through living and working in the Hull-House neighborhood, she identified occupational diseases plaguing those who worked in the “…
Read MoreWhen Georgia chemist Charles Holmes Herty found a way to make quality paper from pine trees in 1932, he also founded an industry that brought much-needed jobs to the depression-crippled south. Paper producers had deemed the plentiful pine too gummy—until Herty's Savannah Pulp and Paper…
Read MoreThe Chemical Abstracts Service, a division of the American Chemical Society, has provided the most comprehensive repository of research in chemistry and related sciences for over 100 years. CAS innovations have fueled chemical research through development of the CAS RegistrySM and CAS databases…
Read MoreRecent archaeological evidence reveals early Virginia, which included both the Roanoke and Jamestown colonies, as the birthplace of the American chemical enterprise. Chemical processes first applied experimentally at Roanoke were re-introduced at Jamestown twenty years later.
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Read MoreImagine a world without batteries. It would be a much different world, in which the automobile and the telephone would have developed differently and probably later, a world without many of the conveniences of modern life and without some of the necessities. The battery, ever smaller and more…
Read MoreBy the 1950s, synthetic fabrics - often wrinkle resistant and flame retardant - began to overtake cotton as the dominant U.S. textile fiber. To reverse this trend chemists and chemical engineers at the Southern Regional Research Center initiated research to modify cotton chemically. Their…
Read MoreDayGlo fluorescent pigments, a new class of pigments based on fluorescent dyes and polymeric materials, were developed between the 1930s and 1950s by scientists at Switzer Brothers, Inc. (now Day-Glo Color Corp.). These pigments absorb various light frequencies (visible and invisible to the…
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Read MoreThe story is so improbable it defies belief: a soil sample from Japan stops suffering in Africa. It starts when a scientist discovers a lowly bacterium near a golf course outside Tokyo. A team of scientists in the United States finds that the bacterium produces compounds that impede the activity…
Read MoreFlavor—encompassing both aroma and taste—provides the defining characteristic of how we experience food. Flavor has long been an enigma to scientists: Aristotle described two categories of taste, sweet and bitter. Today we recognize five basic tastes in food: sweetness, saltiness, sourness,…
Read MoreThe first commercial circulating fluid bed reactor, PCLA #1 (Powdered Catalyst Louisiana), went on stream on May 25, 1942, in the Baton Rouge Refinery of the Standard Oil Company of New Jersey (now ExxonMobil Corporation). This first use of powdered catalysts in continuous operation allowed the…
Read MoreInstant mashed potatoes are commonplace on grocery shelves and have found wide use institutionally and in domestic and international food aid programs. The most successful form of instant mashed potatoes resulted from the flake process developed in the 1950s and 1960s at the Eastern Regional…
Read MoreFrozen foods have become a staple of the modern diet. Freezing allows consumers to have access to foods previously unavailable or available only seasonally, and it provides convenience for many families. But frozen foods became commonplace only after World War II, in part due to research…
Read MoreCharles David Keeling of Scripps Institution of Oceanography was the leading authority in establishing the global atmospheric carbon dioxide (CO2) record. In 1958, Keeling began measuring atmospheric CO2 concentrations from Hawaii’s Mauna Loa Observatory. Using rigorous analytical procedures,…
Read MoreAs much as we know today about the planets of the solar system, it’s almost incomprehensible that a mere 50 years ago we knew almost nothing about them. Observations of even Mars and Venus, Earth’s closest planetary neighbors, through Earth-based telescopes had provided only the most rudimentary…
Read MoreIzaak Maurits Kolthoff (1894–1993) has been described as the father of modern analytical chemistry for his research and teaching that transformed the ways by which scientists separate, identify, and quantify chemical substances. Once a collection of empirical recipes and prescriptions, the field…
Read MoreThe American Chemical Society, the world’s largest scientific society, celebrated its 125th anniversary in 2001. Founded in 1876 in New York City, the Society now has 186 local sections in all 50 states, international chapters, and 32 technical divisions that bring together scientists with…
Read MoreRachel Carson’s Silent Spring, published in 1962, was a landmark in the development of the modern environmental movement. Carson’s scientific perspective and rigor created a work of substantial depth and credibility that sparked widespread debate within the scientific community and the…
Read MorePrior to its merger with the Carnegie Institute of Technology in 1967 to form Carnegie Mellon University, the nonprofit Mellon Institute for Industrial Research was a major, independent research corporation dedicated to promoting applied research for industry and educating scientific researchers…
Read MoreThe federal government’s first physical science research laboratory was chartered by Congress on March 3, 1901, as the National Bureau of Standards, which became the National Institute of Standards and Technology in 1988. Recognizing the critical importance of chemical measures and standards,…
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