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Holyoke Testing Flume
The Holyoke Testing Flume was a hydraulic testing laboratory and apparatus in Holyoke, Massachusetts, operated by the Holyoke Water Power Company from 1870 to 1932, and used to test the performance of water turbine designs, completing 3,176 tests of efficiency in that time. It was described by Robert E. Horton in court testimony as the only facility of its kind in the 19th and early 20th century, which made possible the standardization of American water turbines. Indeed Clemens Herschel, who managed and redesigned the facility in the 1880s, later described it in Congressional testimony as the "first modern hydraulic laboratory" in the United States and the world. It was through Herschel's need to determine the water power consumption of different mills, and in this testing system that he would invent the Venturi meter, the first accurate means of measuring large-scale flows, which still retains widespread use in modern technology today. Research programs In a 1906 report the resea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hydraulic Engineering
Hydraulic engineering as a sub-discipline of civil engineering is concerned with the flow and conveyance of fluids, principally water and sewage. One feature of these systems is the extensive use of gravity as the motive force to cause the movement of the fluids. This area of civil engineering is intimately related to the design of bridges, dams, channels, canals, and levees, and to both sanitary and environmental engineering. Hydraulic engineering is the application of the principles of fluid mechanics to problems dealing with the collection, storage, control, transport, regulation, measurement, and use of water.Prasuhn, Alan L. ''Fundamentals of Hydraulic Engineering''. Holt, Rinehart, and Winston: New York, 1987. Before beginning a hydraulic engineering project, one must figure out how much water is involved. The hydraulic engineer is concerned with the transport of sediment by the river, the interaction of the water with its alluvial boundary, and the occurrence of scour an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Superior Court
In common law systems, a superior court is a court of general jurisdiction over civil and criminal legal cases. A superior court is "superior" in relation to a court with limited jurisdiction (see small claims court), which is restricted to civil cases involving monetary amounts with a specific limit, or criminal cases involving offenses of a less serious nature. A superior court may hear appeals from lower courts (see court of appeal). For courts of general jurisdiction in civil law system, see ordinary court. Etymology The term "superior court" has its origins in the English court system. The royal courts were the highest courts in the country, with what would now be termed supervisory jurisdiction over baronial and local courts. Decisions of those courts could be reviewed by the royal courts, as part of the Crown's role as the ultimate fountain of justice. The royal courts became known as the "superior courts", and lower courts whose decisions could be reviewed by the royal c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Defunct Engineering Companies Of The United States
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Defunct (no longer in use or active) may refer to: * ''Defunct'' (video game), 2014 * Zombie process or defunct process, in Unix-like operating systems See also * * :Former entities * End-of-life product * Obsolescence Obsolescence is the state of being which occurs when an object, service, or practice is no longer maintained or required even though it may still be in good working order. It usually happens when something that is more efficient or less risky r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Buildings And Structures In Holyoke, Massachusetts
A building, or edifice, is an enclosed structure with a roof and walls standing more or less permanently in one place, such as a house or factory (although there's also portable buildings). Buildings come in a variety of sizes, shapes, and functions, and have been adapted throughout history for a wide number of factors, from building materials available, to weather conditions, land prices, ground conditions, specific uses, prestige, and aesthetic reasons. To better understand the term ''building'' compare the list of nonbuilding structures. Buildings serve several societal needs – primarily as shelter from weather, security, living space, privacy, to store belongings, and to comfortably live and work. A building as a shelter represents a physical division of the human habitat (a place of comfort and safety) and the ''outside'' (a place that at times may be harsh and harmful). Ever since the first cave paintings, buildings have also become objects or canvasses of much artistic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Holyoke Heritage State Park
Holyoke Heritage State Park is history-oriented state park located in the city of Holyoke, Massachusetts. The park opened in 1986 on the site of the William Skinner Silk Mill which was lost to fire in 1980. The park is managed by the Massachusetts Department of Conservation and Recreation. Activities and amenities A visitors center has exhibits about paper manufacturing and Holyoke's industrial and cultural past. The landscaped grounds offer picnicking and views of the city's canals and mill buildings. The Holyoke Merry-Go-Round ( PTC #80), the Children's Museum at Holyoke, and the Volleyball Hall of Fame are also located in the park. The park also features its own rail line, a remnant of the former Holyoke & Westfield Railroad, and one of four tourist railroads in the Commonwealth. From 1988 to 1996 the railroad featured regular scenic tours to points outside of the city, however in 2005 the three Pullman cars were sold to the Berkshire Scenic Railway Museum, which continues to ... [...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 (''City in a Garden''); I Will , image_map = , map_caption = Interactive Map of Chicago , coordinates = , coordinates_footnotes = , subdivision_type = Country , subdivision_name ... 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 (Chicago), 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 of the United States, architecture, the arts, American industrial optimism, and Chicago's image. The layout of the Chicago Columbian E ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dynamometer
A dynamometer or "dyno" for short, is a device for simultaneously measuring the torque and rotational speed (RPM) of an engine, motor or other rotating prime mover so that its instantaneous power may be calculated, and usually displayed by the dynamometer itself as kW or bhp. In addition to being used to determine the torque or power characteristics of a machine under test, dynamometers are employed in a number of other roles. In standard emissions testing cycles such as those defined by the United States Environmental Protection Agency, dynamometers are used to provide simulated road loading of either the engine (using an engine dynamometer) or full powertrain (using a chassis dynamometer). Beyond simple power and torque measurements, dynamometers can be used as part of a testbed for a variety of engine development activities, such as the calibration of engine management controllers, detailed investigations into combustion behavior, and tribology. In the medical terminology, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
George I
George I or 1 may refer to: People * Patriarch George I of Alexandria ( fl. 621–631) * George I of Constantinople (d. 686) * George I of Antioch (d. 790) * George I of Abkhazia (ruled 872/3–878/9) * George I of Georgia (d. 1027) * Yuri Dolgorukiy (c. 1099–1157), George I of Kiev/Russia * George I of Duklja, King of Duklja (1113-1118) and again (1125-1131) * George I of Bulgaria (d. 1308/9) * Yuri I of Galicia (c. 1252–1308) * George I of Imereti (fl. late 1300s) * George I, Prince of Anhalt-Dessau (c. 1390–1474) * George VIII of Georgia (1417–1476), George I of Kakheti * George I of Münsterberg (1470–1502) * George I of Brieg (c. 1482–1521) * George I, Duke of Pomerania (1493–1531) * George I of Württemberg-Mömpelgard (1498–1558) * George I, Landgrave of Hesse-Darmstadt (1547–1596) * George I Rákóczi (1593–1648), prince of Transylvania * George I of Great Britain (1660–1727), also Elector of Hanover * George I, Duke of Saxe-Meiningen (1761–1803) * Ge ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Holden, Massachusetts
Holden is a town in Worcester County, Massachusetts, United States. The town was founded in 1741, and the Town Square (Center, Common) was donated by John Hancock, former Governor of Massachusetts. The population was 19,905 at the 2020 census. History Holden was named for Samuel Holden, a director of the Bank of England. Geography According to the United States Census Bureau, the town has a total area of , of which is land and , or 3.40%, is water. The landscape is compiled of hills and rivers, including the Quinapoxet. Holden is bounded on the west by Rutland, on the northwest by Princeton, on the east by Sterling and West Boylston, on the southeast by Worcester, and on the southwest by Paxton. Demographics As of the census of 2000, there were 15,621 people, 5,715 households, and 4,423 families residing in the town. The population density was . There were 5,827 housing units at an average density of . The racial makeup of the town was 97.39% White, 0.49% African Americ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alden Research Laboratory
Alden Research Laboratory, Inc. (Alden) (Holden, Massachusetts) was founded in 1894 as part of Worcester Polytechnic Institute (WPI). It is the oldest continuously operating hydraulic laboratory in the United States.The Role of Contributions of Hydraulic Testing Labs: Part I, Industrial Revolution to World War I. George Hecker, Albert Feron, Bruce J. Pennino. Civil Engineering Practice: Spring/Summer 1999 Today, as an independent entity, Alden has become a recognized leader in the field of fluid dynamics research and development. History Industrial Revolution In light of the industrial revolution, the widespread use of water powered mills, and the need for higher and higher efficiencies, Professor George I. Alden of WPI saw the need for a new lab. The Hydraulic Testing Lab at WPI was established in 1894 on the site of an old woolen mill donated to the institute by Stephen Salisbury III. It was the third of its kind in the US. The first two instruments obtained for the lab, a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Framingham, Massachusetts
Framingham () is a city in the Commonwealth of Massachusetts in the United States. Incorporated in 1700, it is located in Middlesex County and the MetroWest subregion of the Greater Boston metropolitan area. The city proper covers with a population of 72,362 in 2020, making it the 14th most populous municipality in Massachusetts. Residents voted in favor of adopting a charter to transition from a representative town meeting system to a mayor–council government in April 2017, and the municipality transitioned to city status on January 1, 2018. History Framingham, sited on the ancient trail known as the Old Connecticut Path, was first settled by a European when John Stone settled on the west bank of the Sudbury River in 1647. Native American leader Tantamous lived in the Nobscot Hill area of Framingham prior to King Philip's War in 1676. In 1660, Thomas Danforth, an official of the Bay Colony, formerly of Framlingham, Suffolk, received a grant of land at "Danforth's Farms" an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jet Engines
A jet engine is a type of reaction engine discharging a fast-moving jet of heated gas (usually air) that generates thrust by jet propulsion. While this broad definition can include rocket, water jet, and hybrid propulsion, the term typically refers to an internal combustion airbreathing jet engine such as a turbojet, turbofan, ramjet, or pulse jet. In general, jet engines are internal combustion engines. Airbreathing jet engines typically feature a rotating air compressor powered by a turbine, with the leftover power providing thrust through the propelling nozzle—this process is known as the Brayton thermodynamic cycle. Jet aircraft use such engines for long-distance travel. Early jet aircraft used turbojet engines that were relatively inefficient for subsonic flight. Most modern subsonic jet aircraft use more complex high-bypass turbofan engines. They give higher speed and greater fuel efficiency than piston and propeller aeroengines over long distances. A few air-bre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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