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Allen Hazen
Allen Hazen (August 28, 1869 – July 26, 1930) was an expert in hydraulics, flood control, water purification and sewage treatment. His career extended from 1888 to 1930 and he is, perhaps, best known for his contributions to hydraulics with the Hazen-Williams equation. Hazen published some of the seminal works on sedimentation and filtration. He was President of the New England Water Works Association and Vice President of the American Society of Civil Engineers. Early life and education Hazen was born in 1869 on his family farm located near the Connecticut River close to the small town of Norwich, Vermont. He attended the New Hampshire College of Agriculture and Mechanical Arts (which was affiliated with Dartmouth College) and graduated with a Bachelor of Science degree at 15 years of age.Brown, Edward S. (1995). “The Hanover Water Works Company: One Hundred Years of Service.” ''Dartmouth College Library Bulletin.'' April/ref>Hall, Ellen L. “Hydraulics in the Golden Ag ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
American Society Of Civil Engineers
American(s) may refer to: * American, something of, from, or related to the United States of America, commonly known as the "United States" or "America" ** Americans, citizens and nationals of the United States of America ** American ancestry, people who self-identify their ancestry as "American" ** American English, the set of varieties of the English language native to the United States ** Native Americans in the United States, indigenous peoples of the United States * American, something of, from, or related to the Americas, also known as "America" ** Indigenous peoples of the Americas * American (word), for analysis and history of the meanings in various contexts Organizations * American Airlines, U.S.-based airline headquartered in Fort Worth, Texas * American Athletic Conference, an American college athletic conference * American Recordings (record label), a record label previously known as Def American * American University, in Washington, D.C. Sports teams Soccer * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Allen Hazen Water Tower
The Allen Hazen Water Tower, also known as the Municipal Water Tower, is a historic structure located on the west side of Des Moines, Iowa, United States. It was listed on the National Register of Historic Places in 2004. History The first water storage facility in the city of Des Moines was located at Seventeenth and Crocker Streets, and it was completed in 1891. Before it was torn down in 1939, the Allen Hazen Water Tower was completed in 1931. It was designed by New York engineer Clinton Mackenzie of Everett & Hazen. Allen Hazen, one of the partners in the firm and a pioneer in water treatment, was a consulting engineer to the Des Moines Water Works in the 1920s. He also supervised the tower's construction. Hazen died just before construction was completed and the tower was named in his honor. with While there are other water storage facilities in Des Moines, this is technically the only water tower in the city. At one time a large arrow was painted on top of the structure to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dartmouth College Alumni
This list of alumni of Dartmouth College includes alumni and current students of Dartmouth College and its graduate schools. In addition to its undergraduate program, Dartmouth offers graduate degrees in nineteen departments and includes three graduate schools: the Tuck School of Business, the Thayer School of Engineering, and Dartmouth Medical School. Since its founding in 1769, Dartmouth has graduated classes of students and today has approximately 66,500 living alumni. This list uses the following notation: * D or unmarked years – recipient of Dartmouth College Bachelor of Arts * DMS – recipient of Dartmouth Medical School degree (Bachelor of Medicine 1797–1812, Doctor of Medicine 1812–present) * Th – recipient of any of several Thayer School of Engineering degrees (see Thayer School of Engineering#Academics) * T – recipient of Tuck School of Business Master of Business Administration, or graduate of other programs as indicated *M.A., M.A.L.S., M.S., Ph.D, etc. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1930 Deaths
Year 193 ( CXCIII) was a common year starting on Monday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Sosius and Ericius (or, less frequently, year 946 ''Ab urbe condita''). The denomination 193 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years. Events By place Roman Empire * January 1 – Year of the Five Emperors: The Roman Senate chooses Publius Helvius Pertinax, against his will, to succeed the late Commodus as Emperor. Pertinax is forced to reorganize the handling of finances, which were wrecked under Commodus, to reestablish discipline in the Roman army, and to suspend the food programs established by Trajan, provoking the ire of the Praetorian Guard. * March 28 – Pertinax is assassinated by members of the Praetorian Guard, who storm the imperial palace. The Empire is auctioned of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1869 Births
Events January–March * January 3 – Abdur Rahman Khan is defeated at Tinah Khan, and exiled from Afghanistan. * January 5 – Scotland's oldest professional football team, Kilmarnock F.C., is founded. * January 20 – Elizabeth Cady Stanton is the first woman to testify before the United States Congress. * January 21 – The P.E.O. Sisterhood, a philanthropic educational organization for women, is founded at Iowa Wesleyan College in Mount Pleasant, Iowa. * January 27 – The Republic of Ezo is proclaimed on the northern Japanese island of Ezo (which will be renamed Hokkaidō on September 20) by remaining adherents to the Tokugawa shogunate. * February 5 – Prospectors in Moliagul, Victoria, Australia, discover the largest alluvial gold nugget ever found, known as the "Welcome Stranger". * February 20 – Ranavalona II, the Merina Queen of Madagascar, is baptized. * February 25 – The Iron and Steel Institute is formed in Lon ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dobbs Ferry, New York
Dobbs Ferry is a village in Westchester County, New York, United States. The population was 10,875 according to the 2010 United States Census. In 2019, its population rose to an estimated 11,027. The village of Dobbs Ferry is located in, and is a part of, the town of Greenburgh. The village ZIP code is 10522. Most of the village falls within the boundaries of the Dobbs Ferry Union Free School District. Dobbs Ferry was ranked seventh in the list of the top 10 places to live in New York State for 2014, according to the national online real estate brokerage Movoto. Dobbs Ferry is also the first village in New York State certified as a Climate Smart Community and was granted in 2014 the highest level given out in the state. History Multiple groups of native peoples lived in what is now known as Dobbs Ferry since at least 4500BC. The most recent tribe who claimed territory of the area are the Wecquaesgeek, maintaining villages up until the 1600's. Numerous artifacts from the tribe con ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Malcolm Pirnie
Malcolm Pirnie Sr. (February 6, 1889 – February 23, 1967)American Society of Civil Engineers. ''Transactions,'' Vol. 132. 1967. p. 678 was an American civil and consulting engineer, pioneer in sanitary engineering, founder of Malcolm Pirnie, Inc., and president of the American Society of Civil Engineers in 1944. Pirnie was born in 1889 in New York City as son of George Pirnie and Florence Augusta (Pomeroy) Pirnie. He studied civil engineering at Harvard University, where he obtained his BSc in 1910, and his MA in 1911. After graduation in 1911 he started his career as assistant engineer at the New York City consulting firm Hazen and Whipple, where in 1916 he became partner and the company was renamed Hazen, Everett & Pirnie. In 1929 he started his own engineering firm Malcolm Pirnie, Inc. In 1946 he founded Malcolm Pirnie Engineers with four partners. In 1944 Pirnie served as president of the American Society of Civil Engineers. In 1945 he was awarded the honorary Doctor of En ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paterson, New Jersey
Paterson ( ) is the largest City (New Jersey), city in and the county seat of Passaic County, New Jersey, Passaic County, in the U.S. state of New Jersey.New Jersey County Map New Jersey Department of State. Accessed July 10, 2017. As of the 2020 United States census, its population was 159,732, rendering it New Jersey's List of municipalities in New Jersey, third-most-populous city. The United States Census Bureau, Census Bureau's Population Estimates Program calculated that the city's population was 157,794 in 2021, ranking the city as the List of United States cities by population, 163rd-most-populous in the country. Paterson is known as the Silk City for its dominant role in silk production during the latter half of the 19th century.Thoma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Passaic River
Passaic River ( ) is a river, approximately long, in Northern New Jersey. The river in its upper course flows in a highly circuitous route, meandering through the swamp lowlands between the ridge hills of rural and suburban northern New Jersey, called the Great Swamp, draining much of the northern portion of the state through its tributaries. In its lower portion, it flows through the most urbanized and industrialized areas of the state, including along downtown Newark. The lower river suffered from severe pollution and industrial abandonment in the 20th century. In April 2014, the U.S. Environmental Protection Agency (EPA) announced a $1.7 billion plan to remove of toxic mud from the bottom of lower of the river. It is considered one of the most polluted stretches of water in the nation and the project one of the largest clean-ups ever undertaken. Course The Passaic rises in the center of Mendham, in southern Morris County. The river begins at Dubourg Pond located between Sp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
World’s Columbian Exposition
The World's Columbian Exposition (also known as the Chicago World's Fair) was a world's fair held in Chicago in 1893 to celebrate the 400th anniversary of Christopher Columbus's arrival in the New World in 1492. The centerpiece of the Fair, held in Jackson Park, was a large water pool representing the voyage Columbus took to the New World. Chicago had won the right to host the fair over several other cities, including New York City, Washington, D.C., and St. Louis. The exposition was an influential social and cultural event and had a profound effect on American architecture, the arts, American industrial optimism, and Chicago's image. The layout of the Chicago Columbian Exposition was, in large part, designed by John Wellborn Root, Daniel Burnham, Frederick Law Olmsted and Charles B. Atwood. It was the prototype of what Burnham and his colleagues thought a city should be. It was designed to follow Beaux-Arts principles of design, namely neoclassical architecture principles bas ... [...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] |
Monongahela River
The Monongahela River ( , )—often referred to locally as the Mon ()—is a U.S. Geological Survey. National Hydrography Dataset high-resolution flowline dataThe National Map accessed August 15, 2011 river on the Allegheny Plateau in North Central West Virginia, north-central West Virginia and Greater Pittsburgh, Southwestern Pennsylvania. The river flows from the confluence of its west and east forks in north-central West Virginia northeasterly into southwestern Pennsylvania, then northerly to Pittsburgh and its confluence with the Allegheny River to form the Ohio River. The river's entire length is navigable via a series of locks and dams. Etymology The Unami language, Unami word ''Monongahela'' means "falling banks", in reference to the geological instability of the river's banks. Moravian Church, Moravian missionary David Zeisberger (1721–1808) gave this account of the naming: "In the Lenape language, Indian tongue the name of this river was ''Mechmenawungihilla'' (alter ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
