|
Philadelphia Water Department
The Philadelphia Water Department is the public water industry, water utility for the City of Philadelphia. PWD provides integrated Drinking water, potable water, wastewater, and stormwater services for Philadelphia and some communities in Bucks County, Pennsylvania, Bucks, Delaware County, Pennsylvania, Delaware and Montgomery County, Pennsylvania, Montgomery counties. PWD is a municipal agency of the City of Philadelphia, and is seated in rented space at the Jefferson Tower in the Market East area of Center City, Philadelphia. The primary mission of the department is the planning, operation and maintenance of both the physical infrastructure and the organized personnel needed to provide high quality drinking water, and to provide an adequate and reliable water supply for all domestic, commercial, and industrial requirements, and to manage wastewater and stormwater to protect and improve the quality of the region's Drainage basin, watersheds, especially the Delaware River and the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jefferson Tower
Jefferson Center, formerly known as the Aramark Tower and One Reading Center, is a high-rise office building located at 1101 Market Street in the Center City section of Philadelphia. The building stands tall with 32 floors and is currently the 26th-tallest building in the city. The building was originally conceived by the Reading Company while in a state of bankruptcy as a way to capitalize on its real estate holdings in Center City. Reading was granted development rights for the building along with a large parking complex in exchange for granting the city easements for developing the Jefferson Station (then Market East Station) entrance in the ground floor of the adjacent Reading Terminal. Construction soon began and the building was completed in 1984. The building was designed by Bower Lewis Thrower (BLT) Architects of Philadelphia. In 2018, Aramark vacated the building when the company relocated its headquarters to 2400 Market Street. In its place, Thomas Jefferson U ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Environmental Health Perspectives
''Environmental Health Perspectives'' (''EHP'') is a peer-reviewed Peer review is the evaluation of work by one or more people with similar competencies as the producers of the work (peers). It functions as a form of self-regulation by qualified members of a profession within the relevant field. Peer review ... open access journal published monthly with support from the U.S. National Institute of Environmental Health Sciences (NIEHS). The primary purposes of ''EHP'' are to communicate recent scientific findings and trends in the environmental health sciences; to improve the environmental health knowledge base among researchers, administrators, and policy makers; and to inform the public about important topics in environmental health. Journal homepag References {{reflist Environmental social science journals Publications established in 1972 Monthly journals English-language journals Open access journals Environmental health journals Academic journals published by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Water Wheels
A water wheel is a machine for converting the energy of flowing or falling water into useful forms of power, often in a watermill. A water wheel consists of a wheel (usually constructed from wood or metal), with a number of blades or buckets arranged on the outside rim forming the driving car. Water wheels were still in commercial use well into the 20th century but they are no longer in common use. Uses included milling flour in gristmills, grinding wood into pulp for papermaking, hammering wrought iron, machining, ore crushing and pounding fibre for use in the manufacture of cloth. Some water wheels are fed by water from a mill pond, which is formed when a flowing stream is dammed. A channel for the water flowing to or from a water wheel is called a mill race. The race bringing water from the mill pond to the water wheel is a headrace; the one carrying water after it has left the wheel is commonly referred to as a tailrace. Waterwheels were used for various purposes from ag ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Reservoirs
A reservoir (; from French ''réservoir'' ) is an enlarged lake behind a dam. Such a dam may be either artificial, built to store fresh water or it may be a natural formation. Reservoirs can be created in a number of ways, including controlling a watercourse that drains an existing body of water, interrupting a watercourse to form an embayment within it, through excavation, or building any number of retaining walls or levees. In other contexts, "reservoirs" may refer to storage spaces for various fluids; they may hold liquids or gasses, including hydrocarbons. ''Tank reservoirs'' store these in ground-level, elevated, or buried tanks. Tank reservoirs for water are also called cisterns. Most underground reservoirs are used to store liquids, principally either water or petroleum. Types Dammed valleys Dammed reservoirs are artificial lakes created and controlled by a dam constructed across a valley, and rely on the natural topography to provide most of the basin of the re ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Water Power
Hydropower (from el, ὕδωρ, "water"), also known as water power, is the use of falling or fast-running water to produce electricity or to power machines. This is achieved by converting the gravitational potential or kinetic energy of a water source to produce power. Hydropower is a method of sustainable energy production. Hydropower is now used principally for hydroelectric power generation, and is also applied as one half of an energy storage system known as pumped-storage hydroelectricity. Hydropower is an attractive alternative to fossil fuels as it does not directly produce carbon dioxide or other atmospheric pollutants and it provides a relatively consistent source of power. Nonetheless, it has economic, sociological, and environmental downsides and requires a sufficiently energetic source of water, such as a river or elevated lake. International institutions such as the World Bank view hydropower as a low-carbon means for economic development. Since ancient times, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Philadelphia Museum Of Art
The Philadelphia Museum of Art (PMoA) is an art museum originally chartered in 1876 for the Centennial Exposition in Philadelphia. The main museum building was completed in 1928 on Fairmount, a hill located at the northwest end of the Benjamin Franklin Parkway at Eakins Oval. The museum administers collections containing over 240,000 objects including major holdings of European, American and Asian origin. The various classes of artwork include sculpture, paintings, prints, drawings, photographs, armor, and decorative arts. The Philadelphia Museum of Art administers several annexes including the Rodin Museum, also located on the Benjamin Franklin Parkway, and the Ruth and Raymond G. Perelman Building, which is located across the street just north of the main building. The Perelman Building, which opened in 2007, houses more than 150,000 prints, drawings and photographs, along with 30,000 costume and textile pieces, and over 1,000 modern and contemporary design objects including fu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fairmount Water Works
The Fairmount Water Works in Philadelphia, Pennsylvania, was Philadelphia's second municipal waterworks. Designed in 1812 by Frederick Graff and built between 1812 and 1872, it operated until 1909, winning praise for its design and becoming a popular tourist attraction. It now houses a restaurant and an interpretive center that explains the waterworks' purpose and local watershed history. It was designated a National Historic Landmark in 1976 for its architecture and its engineering innovations. It was the nation's first water supply to use paddle wheels to move water. History Following a series of yellow fever epidemics in the late 18th century (which was at the time thought to be caused by unclean water or by rotting matter in the streets) city leaders appointed a "Watering Committee". The initial water system was designed by Benjamin Latrobe and accepted by the committee in 1799. His system utilized two steam engines (in series) to pump water from the Schuylkill River, into th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Steam Engines
A steam engine is a heat engine that performs mechanical work using steam as its working fluid. The steam engine uses the force produced by steam pressure to push a piston back and forth inside a cylinder. This pushing force can be transformed, by a connecting rod and crank, into rotational force for work. The term "steam engine" is generally applied only to reciprocating engines as just described, not to the steam turbine. Steam engines are external combustion engines, where the working fluid is separated from the combustion products. The ideal thermodynamic cycle used to analyze this process is called the Rankine cycle. In general usage, the term ''steam engine'' can refer to either complete steam plants (including boilers etc.), such as railway steam locomotives and portable engines, or may refer to the piston or turbine machinery alone, as in the beam engine and stationary steam engine. Although steam-driven devices were known as early as the aeolipile in the first ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chestnut Street (Philadelphia)
Chestnut Street is a major historic street in Philadelphia, Pennsylvania. It was originally named Wynne Street because Thomas Wynne's home was there. William Penn renamed it Chestnut Street in 1684. It runs east–west from the Delaware River waterfront in downtown Philadelphia through Center City and West Philadelphia. The road crosses the Schuylkill River on the Chestnut Street Bridge. It serves as eastbound Pennsylvania Route 3 between 63rd and 33rd Streets. Stratton's Tavern was located on Chestnut Street near Sixth Street. When the citizens of Philadelphia were afraid that the British might attack the essentially unmanned Fort Mifflin, the secretary of the Young Men's Democratic Society called a meeting held at Stratton's Tavern at Chestnut and Sixth Streets on March 20, 1813. The young men agreed to volunteer their services to defend the fort. Points of interest From east to west: * United States Custom House * National Liberty Museum *Carpenters' Hall * First National ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Philadelphia City Hall
Philadelphia City Hall is the seat of the municipal government of the City of Philadelphia. Built in the ornate Second Empire style, City Hall houses the chambers of the Philadelphia City Council and the offices of the Mayor of Philadelphia. It is also a courthouse, serving as the seat of the First Judicial District of Pennsylvania, and houses the Civil Trial and Orphans' Court Divisions of the Court of Common Pleas of Philadelphia County. Built of brick, white marble, and limestone, Philadelphia City Hall is the world's largest free-standing masonry building and was the world's tallest habitable building upon its completion in 1894. In 1976, it was designated a National Historic Landmark, and in 2006, was also named a National Historic Civil Engineering Landmark by the American Society of Civil Engineers. History and description The building was designed by Scottish-born architect John McArthur Jr. and Thomas Ustick Walter [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Historical Philly
History (derived ) is the systematic study and the documentation of the human activity. The time period of event before the invention of writing systems is considered prehistory. "History" is an umbrella term comprising past events as well as the memory, discovery, collection, organization, presentation, and interpretation of these events. Historians seek knowledge of the past using historical sources such as written documents, oral accounts, art and material artifacts, and ecological markers. History is not complete and still has debatable mysteries. History is also an academic discipline which uses narrative to describe, examine, question, and analyze past events, and investigate their patterns of cause and effect. Historians often debate which narrative best explains an event, as well as the significance of different causes and effects. Historians also debate the nature of history as an end in itself, as well as its usefulness to give perspective on the problems of the p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fire Hydrants
A fire hydrant, waterplug, or firecock (archaic) is a connection point by which firefighters can tap into a water supply. It is a component of active fire protection. Underground fire hydrants have been used in Europe and Asia since at least the 18th century. Above-ground pillar-type hydrants are a 19th-century invention. History Before piped mains supplies, water for firefighting had to be kept in buckets and cauldrons ready for use by ' bucket-brigades' or brought with a horse-drawn fire-pump. From the 16th century, as wooden mains water systems were installed, firefighters would dig down to the pipes and drill a hole for water to fill a “wet well” for the buckets or pumps. This had to be filled and plugged afterwards, hence the common US term for a hydrant, 'fireplug'. A marker would be left to indicate where a 'plug' had already been drilled to enable firefighters to find ready-drilled holes. Later wooden systems had pre-drilled holes and plugs. When cast-iron pipe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
.jpg "Click for more on -> Water Power")
_p11_STATUE_OF_WILLIAM_PENN.jpg "Click for more on -> Philadelphia City Hall")
.jpg "Click for more on -> Historical Philly")
