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McMillan Reservoir
The McMillan Reservoir is a reservoir in Washington, D.C. that supplies the majority of the city's municipal water. It was originally called the Howard University Reservoir or the Washington City Reservoir, and was completed in 1902 by the U.S. Army Corps of Engineers. Construction history The Macmillan Reservoir was built in 1902 on the site of Smith Spring, one of the springs previously used for drinking water. Washington's earliest residents relied on natural springs but this came to be inadequate as the city's population grew. In 1850, Congress determined that the Potomac River should be the city's principal source of water. Washington Aqueduct A congressionally funded engineering study was conducted to determine the most available mode of supplying water to the city. Work and study conducted under the leadership of Lieutenant Montgomery C. Meigs culminated into the development of the Washington Aqueduct which began operations on January 3, 1859. Initially the system provide ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
McMillan Sand Filtration Site
McMillan Sand Filtration Site is a twenty-five acre decommissioned water treatment plant in northwest Washington, D.C., built as part of the historic McMillan Reservoir Park. It is bound on the north by Michigan Avenue, on the east by North Capitol Street, on the south by Channing Street and on the west by McMillan Drive; which runs along the edge of the reservoir, to which it was formerly attached. Two paved courts lined by regulator houses, tower-like sand bins, sand washers and the gated entrances to the underground filter cells provided a promenade for citizens taking the air in the park before it was fenced off in WWII. Below grade, there are twenty catacomb-like cells, each an acre in extent, where sand was used to filter water from the Potomac River by way of the Washington Aqueduct. The purification system was a slow sand filter design that became obsolete by the late 20th century. In 1985, a new rapid sand filter plant replaced it across First Street beside the reservoir. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Herbert Adams (sculptor)
Samuel Herbert Adams (January 28, 1858 – May 21, 1945) was an American sculptor. Biography Herbert Adams was born in 1858 at West Concord, Vermont, son of machinist and patternmaker Samuel Minot Adams and Nancy Powers. In 1863, at the age of five, he moved to Fitchburg, Massachusetts, so his father could take a job at the Putnam Machine Co. His family purchased a home on 26 Chestnut Street. He was educated in the public schools of Fitchburg and Worcester, and at the Massachusetts Institute of Technology. He was influenced by Fitchburg's first Art teacher, Louise Haskell, to pursue a career in Art. He studied art at the Massachusetts Normal Art School in Boston and got a teaching certificate. Herbert Adams taught Art in the Fitchburg public schools from 1878 tp 1882, but left Fitchburg for Paris France in 1885 to pursue his interest in sculpture. He was educated at the Massachusetts Normal Art School enrolling in 1877 at 18 years of age, and from 1885 to 1890 he was a pupil o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States
The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territories, nine Minor Outlying Islands, and 326 Indian reservations. The United States is also in free association with three Pacific Island sovereign states: the Federated States of Micronesia, the Marshall Islands, and the Republic of Palau. It is the world's third-largest country by both land and total area. It shares land borders with Canada to its north and with Mexico to its south and has maritime borders with the Bahamas, Cuba, Russia, and other nations. With a population of over 333 million, it is the most populous country in the Americas and the third most populous in the world. The national capital of the United States is Washington, D.C. and its most populous city and principal financial center is New York City. Paleo-Americ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
North Capitol Street
North Capitol Street is a street in Washington, D.C. that separates the Northwest and Northeast quadrants of the city. Route description North Capitol Street begins at D Street in Lower Senate Park, between Louisiana and Delaware Avenues north of the United States Capitol. It continues in a straight line northward until it reaches Michigan Avenue, where it curves eastward and the westward around the Washington, D.C., VA Medical Center and the Armed Forces Retirement Home. For the between Irving Street and Clermont Drive, North Capitol Street is a limited-access road. North Capitol Street ceases to exist after Harewood Road. For , it is named Clermont Drive. Beginning at Allison Street, Clermont Drive becomes Hawaii Avenue. Just after passing Buchanan Street, Hawaii Avenue turns back into North Capitol Street. North Capitol Street ceases to exist again at McDonald Place, and turns into Blair Road (which veers north-northeast). About due north of this transition, on Chillum Pl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Michigan Avenue (Washington, D , a street through the State Capitol area, a portion of which is M-143
{{Road disambiguation ...
Michigan Avenue may refer to: * Michigan Avenue (Chicago) * Michigan Avenue (Michigan), a designation for much of both current and former U.S. Route 12 in Michigan * Michigan Avenue (Lansing, Michigan) Michigan Avenue may refer to: * Michigan Avenue (Chicago) * Michigan Avenue (Michigan) Michigan Avenue may refer to: * Michigan Avenue (Chicago) Michigan Avenue is a north-south street in Chicago which runs at 100 east on the Chicago grid. T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
World War II
World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the vast majority of the world's countries—including all of the great powers—forming two opposing military alliances: the Allies and the Axis powers. World War II was a total war that directly involved more than 100 million personnel from more than 30 countries. The major participants in the war threw their entire economic, industrial, and scientific capabilities behind the war effort, blurring the distinction between civilian and military resources. Aircraft played a major role in the conflict, enabling the strategic bombing of population centres and deploying the only two nuclear weapons ever used in war. World War II was by far the deadliest conflict in human history; it resulted in 70 to 85 million fatalities, mostly among civilians. Tens of millions died due to genocides (including the Holocaust), starvation, ma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rapid Sand Filter
The rapid sand filter or rapid gravity filter is a type of filter used in water purification and is commonly used in municipal drinking water facilities as part of a multiple-stage treatment system. Rapid sand filters were first developed in the 1890s, and improved designs were developed by the 1920s. The first modern rapid sand filtration plant was designed and built by George W. Fuller in Little Falls, New Jersey. Rapid sand filters were widely used in large municipal water systems by the 1920s, because they required smaller land areas compared to slow sand filters. Design and operation Rapid sand filters are typically designed as part of multi-stage treatment systems used by large municipalities. These systems are complex and expensive to operate and maintain, and therefore less suitable for small communities and developing nations. The filtration system requires a relatively small land area in proportion to the population served, and the design is less sensitive to changes i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Disinfectant
A disinfectant is a chemical substance or compound used to inactivate or destroy microorganisms on inert surfaces. Disinfection does not necessarily kill all microorganisms, especially resistant bacterial spores; it is less effective than sterilization, which is an extreme physical or chemical process that kills all types of life. Disinfectants are generally distinguished from other antimicrobial agents such as antibiotics, which destroy microorganisms within the body, and antiseptics, which destroy microorganisms on living tissue. Disinfectants are also different from biocides—the latter are intended to destroy all forms of life, not just microorganisms. Disinfectants work by destroying the cell wall of microbes or interfering with their metabolism. It is also a form of decontamination, and can be defined as the process whereby physical or chemical methods are used to reduce the amount of pathogenic microorganisms on a surface. Disinfectants can also be used to destroy m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chlorine
Chlorine is a chemical element with the Symbol (chemistry), symbol Cl and atomic number 17. The second-lightest of the halogens, it appears between fluorine and bromine in the periodic table and its properties are mostly intermediate between them. Chlorine is a yellow-green gas at room temperature. It is an extremely reactive element and a strong oxidising agent: among the elements, it has the highest electron affinity and the third-highest electronegativity on the revised Electronegativity#Pauling electronegativity, Pauling scale, behind only oxygen and fluorine. Chlorine played an important role in the experiments conducted by medieval Alchemy, alchemists, which commonly involved the heating of chloride Salt (chemistry), salts like ammonium chloride (sal ammoniac) and sodium chloride (common salt), producing various chemical substances containing chlorine such as hydrogen chloride, mercury(II) chloride (corrosive sublimate), and hydrochloric acid (in the form of ). However ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Michigan
Michigan () is a state in the Great Lakes region of the upper Midwestern United States. With a population of nearly 10.12 million and an area of nearly , Michigan is the 10th-largest state by population, the 11th-largest by area, and the largest by area east of the Mississippi River.''i.e.'', including water that is part of state territory. Georgia is the largest state by land area alone east of the Mississippi and Michigan the second-largest. Its capital is Lansing, and its largest city is Detroit. Metro Detroit is among the nation's most populous and largest metropolitan economies. Its name derives from a gallicized variant of the original Ojibwe word (), meaning "large water" or "large lake". Michigan consists of two peninsulas. The Lower Peninsula resembles the shape of a mitten, and comprises a majority of the state's land area. The Upper Peninsula (often called "the U.P.") is separated from the Lower Peninsula by the Straits of Mackinac, a channel that joins Lak ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
James McMillan (Senator)
James McMillan (May 12, 1838 – August 10, 1902) was a businessman and a Republican U.S. Senator from Michigan, as well as the chair of the McMillan Commission. Biography McMillan was born in Hamilton, Ontario, Canada, to William and Grace McMillan, both Scottish natives. He attended Hamilton public schools before moving to Detroit, Michigan, in 1855 to embark on a career in business. McMillan's first position was as a clerk for Buhl, Ducharme & Co., a wholesale hardware firm. At the age of 20, he left to become the purchasing agent for the Detroit & Milwaukee Railway. In 1863, he helped, along with John Stoughton Newberry, to organize the Michigan Car Company for the manufacture of freight cars. This business grew very rapidly, and in ten years it was one of the largest in the United States. Its success led to the formation of the Detroit Car Wheel Co., the Baugh Steam Forge Co., the Detroit Iron Furnace Co., and the Vulcan Furnace Co. He was also a major shareholder in the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
