Rotogravure (or gravure for short) is a type of intaglio printing process, which involves engraving the image onto an image carrier. In gravure printing, the image is engraved onto a cylinder because, like offset printing and flexography , it uses a rotary printing press .
103-518: Triangle Publications Inc. was an American media group based first in Philadelphia , and later in Radnor, Pennsylvania . It was a privately held corporation, with the majority of its stock owned by Walter Annenberg and his sisters. Its holdings consisted of newspapers, magazines, and radio stations. After nearly two decades of divestiture , it was folded into News Corporation in 1988. Triangle
206-697: A DJ , on WFIL-AM. Clark became host of WFIL-TV's Bandstand program when the original host, Bob Horn , was arrested for alleged impaired driving in the midst of an anti-drunk-driving campaign by the Triangle-owned Philadelphia Inquirer . Triangle expanded its broadcast interest during the 1950s and 1960s to include WNHC AM-FM-TV, Binghamton, New York 's WNBF AM-FM-TV, Lebanon, Pennsylvania 's WLYH-TV , Altoona, Pennsylvania 's WFBG AM-FM-TV, and Fresno's KFRE AM-FM-TV. Triangle's broadcasting operations also reflected Walter Annenberg's interest and commitment to education, with
309-743: A 24-hour particle pollution rating of D in the American Lung Association 's 2017 State of the Air report, which analyzed data from 2013 to 2015. The city was ranked 22nd for ozone, 20th for short-term particle pollution, and 11th for year-round particle pollution. According to the same report, the city experienced a significant reduction in high ozone days since 2001—from nearly 50 days per year to fewer than 10—along with fewer days of high particle pollution since 2000—from about 19 days per year to about 3—and an approximate 30% reduction in annual levels of particle pollution since 2000. Five of
412-495: A bachelor's degree or higher. 23.9% spoke a language other than English at home, the most common of which was Spanish (10.8%). 15.0% of the populations foreign born, roughly half of whom are naturalized U.S. citizens. 3.7% of the population are veterans. The median household income was $ 52,889 and 22.8% of the population lived in poverty. 49.5% of the population drove alone to work, while 23.2% used public transit, 8.2% carpooled, 7.9% walked, and 7.0% worked from home. The average commute
515-745: A broadcasting equipment manufacturer based in Lansdowne, Pennsylvania , McMurray Printers, a small job press printer in Miami , McMurray Publishing Co., Ltd, which published the Canadian editions of TV Guide , Triangle Circulation, which handled the nationwide distribution of Triangle's magazines and those of other publishers, and Educasting, a developer of educational programming. Triangle's original flagship ventures were The Daily Racing Form , The Philadelphia Inquirer and WFIL. The Inquirer became Philadelphia 's only major morning daily paper in 1947, after
618-403: A budget of $ 371 million. The Philadelphia Parking Authority is responsible for ensuring adequate parking for city residents, businesses, and visitors. Philadelphia's architectural history dates back to colonial times and includes a wide range of styles. The earliest structures were constructed with logs , but brick structures were common by 1700. During the 18th century, the cityscape
721-474: A city on the Delaware River to serve as a port and place for government. Hoping that Philadelphia would become more like an English rural town instead of a city, Penn laid out roads on a grid plan to keep houses and businesses spread far apart with areas for gardens and orchards . The city's inhabitants did not follow Penn's plans, however, and instead crowded the present-day Port of Philadelphia on
824-448: A gravure press, such as saddle stitching facilities for magazine or brochure work. Although the rotogravure printing process is not the most popular printing process used in flexible-packaging manufacturing, it does have the ability to print on thin film such as polyester, polypropylene, nylon, and polyethylene, which come in a wide range of thicknesses, commonly 10 to 30 micrometers. Other appreciated features include: Shortcomings of
927-497: A grid pattern between the Delaware and Schuylkill rivers that is aligned with their courses. The original city plan was designed to allow for easy travel and to keep residences separated by open space that would help prevent the spread of fire. In keeping with the idea of a "Greene Countrie Towne", and inspired by the many types of trees that grew in the region, Penn named many of the east–west streets for local trees. Penn planned
1030-716: A growth in its population in 2007, which continued with incremental annual increases through the present. A migration pattern has been established from New York City to Philadelphia by residents opting for a large city with relative proximity and a lower cost of living . Philadelphia's geographic center is about 40° 0′ 34″ north latitude and 75° 8′ 0″ west longitude. The 40th parallel north passes through neighborhoods in Northeast Philadelphia , North Philadelphia , and West Philadelphia including Fairmount Park . The city encompasses 142.71 square miles (369.62 km ), of which 134.18 square miles (347.52 km )
1133-631: A joint effort between former mayors John F. Street and Michael Nutter . The zoning changes were intended to rectify incorrect zoning maps to facilitate future community development, as the city forecasts an additional 100,000 residents and 40,000 jobs will be added by 2035. The Philadelphia Housing Authority (PHA) is the largest landlord in Pennsylvania. Established in 1937, the PHA is the nation's fourth-largest housing authority, serving about 81,000 people with affordable housing, while employing 1,400 on
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#17327729501221236-610: A moderately sunny climate with an average of 2,498 hours of sunshine annually. The percentage of sunshine ranges from 47% in December to 61% in June, July, and August. The January daily average temperature is 33.7 °F (0.9 °C). The temperature frequently rises to 50 °F (10 °C) during thaws. July averages 78.7 °F (25.9 °C). Heat waves accompanied by high humidity and heat indices are frequent, with highs reaching or exceeding 90 °F (32 °C) on 30 days of
1339-524: A small office on South Broad Street in Philadelphia to a new, sprawling facility at 250 King of Prussia Road in suburban Radnor, Pennsylvania . This new facility housed all aspects of the publication, including managerial, marketing, production, photography, editorial and subscription services. The wrap-around color portion of the magazine was printed at Triangle's state-of-the-art rotogravure plant at 440 North Broad Street in Philadelphia, adjacent to
1442-679: A smear campaign against him. Triangle began divesting itself of its broadcasting operations with the sale of the WFIL, WNHC and KFRE stations and Triangle Program Services in 1971 to Capital Cities Communications , followed by the remaining stations in 1972 to Gateway Communications, a new company formed by former Triangle employees. Gateway made its move in 1974 by acquiring non-Triangle station and an ABC affiliate WHTN-TV from Reeves Telecom, and rechristened as WOWK-TV in 1975. In 1988, Triangle Publications' remaining assets were sold to Rupert Murdoch 's News Corporation for 2.83 billion dollars, in one of
1545-878: A time, row houses built elsewhere in the United States were known as "Philadelphia rows". A variety of row houses are found throughout the city, from Federal-style continuous blocks in Old City and Society Hill to Victorian-style homes in North Philadelphia to twin row houses in West Philadelphia . While newer homes have been built recently, much of the housing dates to the 18th, 19th, and early 20th centuries, which has created problems such as urban decay and vacant lots. Some neighborhoods, including Northern Liberties and Society Hill, have been rehabilitated through gentrification . As of 2014 ,
1648-657: A town in Finland with a Swedish majority. In 1655, a Dutch military campaign led by New Netherland Director-General Peter Stuyvesant took control of the Swedish colony, ending its claim to independence. The Swedish and Finnish people settlers continued to have their own militia , religion, and court, and to enjoy substantial autonomy under the Dutch. An English fleet captured the New Netherland colony in 1664, though
1751-409: Is 31 minutes. Rotogravure Once a staple of newspaper photo features, the rotogravure process is still used for commercial printing of magazines, postcards, and corrugated (cardboard) and other product packaging. In the 19th century, a number of developments in photography allowed the production of photo-mechanical printing plates. Henry Fox Talbot mentions in 1852 the use of a textile in
1854-446: Is a small, specialty market.) Rotary gravure presses are the fastest and widest presses in operation, printing everything from narrow labels to 12-foot-wide (3.66-meter-wide) rolls of vinyl flooring. For maximum efficiency, gravure presses operate at high speeds producing large diameter, wide rolls. These are then cut or slit down to the finished roll size on a slitting machine or slitter rewinder. Additional operations may be in line with
1957-466: Is highly variable. Some winters have only light snow while others include major snowstorms. The normal seasonal snowfall averages 22.4 in (57 cm), with rare snowfalls in November or April, and rarely any sustained snow cover. Seasonal snowfall accumulation has ranged from trace amounts in 1972–73, to 78.7 inches (200 cm) in the winter of 2009–10. The city's heaviest single-storm snowfall
2060-492: Is home to five Fortune 500 corporate headquarters. Metropolitan Philadelphia ranks as one of the Big Five U.S. venture capital hubs, facilitated by its geographic proximity to both the entrepreneurial and financial ecosystems of New York City and to the federal regulatory environment of Washington, D.C. Greater Philadelphia is also a biotechnology hub. The Philadelphia Stock Exchange , owned by Nasdaq since 2008,
2163-611: Is in the flexible-packaging sector. A wide range of substrates such as polyethylene, polypropylene, polyester, BOPP, etc. can be printed in the gravure press. Gravure printing is one of the common processes used in the converting industry. Rotogravure presses for publication run at 45 feet (14 m) per second and more, with paper reel widths of over 10 feet (3 m), enabling an eight-unit press to print about seven million four-color pages per hour. The vast majority of gravure presses print on rolls (also known as webs ) of paper or other substrates, rather than sheets. (Sheetfed gravure
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#17327729501222266-665: Is land and 8.53 square miles (22.09 km ), or 6%, is water. Natural bodies of water include the Delaware and Schuylkill rivers, lakes in Franklin Delano Roosevelt Park , and Cobbs , Wissahickon , and Pennypack creeks. The largest artificial body of water is East Park Reservoir in Fairmount Park . The lowest point is sea level and the highest point is in Chestnut Hill , about 446 feet (136 m) above sea level on Summit Street near
2369-440: Is often ranked as the nation's best city for professional sports fans. The city has a culturally and philanthropically active LGBTQ+ community . Philadelphia also has played an immensely influential historic and ongoing role in the development and evolution of American music, especially R&B , soul , and rock . As of 2022 , the Philadelphia metropolitan area had a gross metropolitan product of US$ 518.5 billion and
2472-598: Is one of the largest contiguous urban park areas in the U.S. The two parks, along with the Colonial Revival , Georgian and Federal -style mansions in them, have been listed as one entity on the National Register of Historic Places since 1972. Within the Köppen climate classification , Philadelphia falls under the northern periphery of the humid subtropical climate zone (Köppen Cfa ). Within
2575-433: Is the nation's oldest stock exchange and a global leader in options trading. 30th Street Station , the city's primary rail station, is the third-busiest Amtrak hub in the nation, and the city's multimodal transportation and logistics infrastructure also includes Philadelphia International Airport , a major transatlantic gateway and transcontinental hub; the rapidly-growing PhilaPort seaport ; and Interstate 95 ,
2678-579: Is to create the cylinder with the engraved images that need to be printed: the engraving process will create on the cylinder surface the cells that will contain the ink in order to transfer it to the paper. Since the amount of ink contained in the cells corresponds to different colour intensities on the paper, the dimensions of the cells must be carefully set: deeper or larger cells will produce more intense colours whereas smaller cells will produce less intense ones. There are three methods of photoengraving that have been used for engraving of gravure cylinders, where
2781-1165: The Philadelphia Daily News , Seventeen magazine, TV Guide , Good Food magazine, Official Detective magazine, and television and radio stations, including WFIL-AM - FM - TV in Philadelphia, WLYH-TV in Lancaster and Lebanon , Pennsylvania , WFBG-AM - FM - TV in Altoona and Johnstown , Pennsylvania, WNHC AM - FM - TV in New Haven, Connecticut , WNBF-AM - FM - TV in Binghamton, New York , and KFRE AM - FM - TV in Fresno, California . Triangle owned cable TV operations in various regions including Suburban Cable TV Co. in suburban Philadelphia, Empire State Cable TV Co. in New York, and New Haven Cable TV Co. in Connecticut . It also owned ITA Electronics,
2884-587: The Philadelphia Record filed for bankruptcy. In 1957, Walter Annenberg acquired the Philadelphia Daily News and merged its facilities with the Inquirer ' s. Triangle was probably best known for its primary magazine publication, TV Guide . Against the advice of his close advisors, Annenberg purchased various local TV listing magazines (TV List, TV Digest, TeleVision Guide, TV Guide) and merged them into one national weekly publication under
2987-456: The 2020 U.S. Census , there were 1,603,797 people residing in Philadelphia, representing a 1.2% increase from the 2019 census estimate. The racial composition of the city was 39.3% Black alone (42.0% Black alone or in combination), 36.3% White alone (41.9% White alone or in combination), 8.7% Asian alone, 0.4% American Indian and Alaska Native alone, 8.7% some other race, and 6.9% multiracial. 14.9% of residents were Hispanic or Latino. 34.8% had
3090-788: The Battle of Brandywine in Chadds Ford Township , on September 11, 1777, during the Philadelphia campaign , the revolutionary capital of Philadelphia was defenseless and the city prepared for what was perceived to be an inevitable British attack. Because bells could easily be recast into munitions, the Liberty Bell , then known as the Pennsylvania State Bell, and bells from two Philadelphia churches, Christ Church and St. Peter's Church , were hastily taken down and transported by heavily guarded wagon train out of
3193-624: The British Army , which was then the world's most powerful military force. Since the Declaration's July 4, 1776, adoption, its signing has been cited globally and repeatedly by various peoples of the world seeking independence and liberty. It also has been, since its adoption, the basis for annual celebration by Americans; in 1938, this celebration of the Declaration was formalized as Independence Day , one of only eleven designated U.S. federal holidays . After George Washington 's defeat at
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3296-614: The Delaware River watershed , western Long Island , and the Lower Hudson Valley . Most Lenape were pushed out of the region during the 18th century by expanding European colonies, exacerbated by losses from intertribal conflicts. Lenape communities were weakened by newly introduced diseases, mainly smallpox , and conflict with Europeans. The Iroquois occasionally fought the Lenape. Surviving Lenape moved west into
3399-684: The Eastern Mediterranean during the Greek and Roman periods, including modern Alaşehir , mentioned as the site of an early Christian congregation in the Book of Revelation . As a Quaker , Penn had experienced religious persecution and wanted his colony to be a place where anyone could worship freely. This tolerance, which exceeded that of other colonies, led to better relations with the local native tribes and fostered Philadelphia's rapid growth into America's most important city. Penn planned
3502-583: The Great Migration from the South . By the 20th century, Philadelphia had an entrenched Republican political machine and a complacent population. In 1910, a general strike shut down the entire city. In 1917, following outrage over the election-year murder of a Philadelphia police officer, led to the shrinking of the City Council from two houses to just one. In July 1919, Philadelphia
3605-537: The Philadelphia Inquirer Building. Triangle Publications also maintained TV Guide sales offices in major metropolitan areas throughout the nation. Another Triangle success was Seventeen magazine, a publication started by Annenberg in 1944, featuring fashion tips and advice for teenage girls. Seventeen was published monthly and, like TV Guide , maintained a strong subscription base. America's horse racing enthusiasts relied heavily on
3708-698: The Second Continental Congress , which adopted the Declaration of Independence in what was then called the Pennsylvania State House and was later renamed Independence Hall. Historian Joseph Ellis , in 2007, described the Declaration of Independence, written predominantly by Thomas Jefferson , as "the most potent and consequential words in American history," and its adoption represented a declaration of war against
3811-480: The Trewartha climate classification , Philadelphia has a temperate maritime climate ( Do ) limited to the north by the continental climate ( Dc ). Summers are typically hot and muggy. Fall and spring are generally mild, and winter is moderately cold. The plant life hardiness zones are 7a and 7b, reflecting an average annual extreme minimum temperature between 0 and 10 °F (−18 and −12 °C). Snowfall
3914-408: The broadcasting industry with the 1947 purchase of WFIL in Philadelphia from the department stores Lit Brothers and Strawbridge and Clothier . WFIL had evolved from Lit Brothers' WLIT (original call letters were WDAR) and Strawbridge's WFI radio stations, which had in the early days of commercial radio shared time on the same frequency. Walter Annenberg became interested in WFIL as it was one of
4017-448: The world's 54th-largest urban park . Philadelphia is known for its arts, culture , cuisine , and colonial and Revolutionary-era history; in 2016, it attracted 42 million domestic tourists who spent $ 6.8 billion, representing $ 11 billion in economic impact to the city and its surrounding Pennsylvania counties. With five professional sports teams and one of the nation's most loyal and passionate fan bases, Philadelphia
4120-490: The 1980s. Historic areas such as Old City and Society Hill were renovated during the reformist mayoral era of the 1950s through the 1980s, making both areas among the most desirable Center City neighborhoods. Immigrants from around the world began to enter the U.S. through Philadelphia as their gateway, leading to a reversal of the city's population decline between 1950 and 2000, during which it lost about 25 percent of its residents. Philadelphia eventually began experiencing
4223-665: The 2 square miles (5.2 km ) of Center City to the roughly 134 square miles (350 km ) of Philadelphia County . In the latter half of the 19th century and leading into the 20th century, immigrants from Russia, Eastern Europe, and Italy, and African Americans from the southern U.S. settled in the city. Philadelphia was represented by the Washington Grays in the American Civil War . The African-American population of Philadelphia increased from 31,699 to 219,559 between 1880 and 1930, largely stemming from
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4326-511: The Delaware River and subdivided and resold their lots. Before Penn left Philadelphia for the final time, he issued the Charter of 1701 establishing it as a city. Though poor at first, Philadelphia became an important trading center with tolerable living conditions by the 1750s. Benjamin Franklin , a leading citizen, helped improve city services and founded new ones that were among the first in
4429-463: The Philadelphia metropolitan area, the nation's eighth-largest metropolitan area and seventh-largest combined statistical area with 6.245 million residents and 7.366 million residents, respectively. Philadelphia has played an extensive role in United States history . The city was founded in 1682 by William Penn , an English Quaker and advocate of religious freedom , and served as
4532-794: The Second Continental Congress adopted the Articles of Confederation on November 15, 1777, and the city later served as the meeting place for the Constitutional Convention , which ratified the Constitution in Independence Hall in Philadelphia on September 17, 1787. Philadelphia served as capital of the United States for much of the colonial and early post-colonial periods, including for a decade, from 1790 to 1800, while Washington, D.C. ,
4635-585: The United States after Midtown Manhattan in New York City. Philadelphia's neighborhoods are divided into six large sections that surround Center City: North Philadelphia , Northeast Philadelphia , South Philadelphia , Southwest Philadelphia , West Philadelphia , and Northwest Philadelphia . The city's geographic boundaries have been largely unchanged since these neighborhoods were consolidated in 1854. However, each of these large areas contains numerous neighborhoods, some of whose boundaries derive from
4738-472: The boroughs, townships, and other communities that constituted Pennsylvania County before their inclusion within the city. The City Planning Commission , tasked with guiding growth and development of the city, has divided the city into 18 planning districts as part of the Philadelphia2035 physical development plan. Much of the city's 1980 zoning code was overhauled from 2007 to 2012 as part of
4841-673: The capital of the Pennsylvania Colony during the British colonial era . The city went on to play a historic and vital role during the American Revolution and Revolutionary War , serving as the central meeting place for the nation's founding fathers , hosting the First Continental Congress in 1774, preserving the Liberty Bell , and hosting the Second Continental Congress during which
4944-444: The cell open size or the depth of cells can be uniform or variable: Gravure cylinders are usually made of steel and plated with copper, though other materials, e.g. ceramics can also be used. The desired pattern is achieved by engraving with a laser or a diamond tool, or by chemical etching. If the cylinder is chemically etched, a resist (in the form of a negative image) is transferred to the cylinder before etching. The resist protects
5047-587: The city for its outlying railroad commuting towns and newer housing. The resulting reduction in Philadelphia's tax base and the resources of local government caused the city to struggle through a long period of adjustment, and it approached bankruptcy by the late 1980s. In 1985, the MOVE Bombing of the Cobbs Creek neighborhood by city helicopters occurred, killing 11 and destroying 61 homes. Revitalization and gentrification of neighborhoods began in
5150-532: The city's 17th century founding through the present, Philadelphia has been the birthplace or home to an extensive number of prominent and influential Americans . Prior to the arrival of Europeans in the early 17th century, the Philadelphia area was home to the Lenape Indians in the village of Shackamaxon . They were also called the Delaware Indians, and their historical territory was along
5253-456: The city's director of public safety, but political pressure still prevented long-term success in fighting crime and corruption. In 1940, non-Hispanic whites constituted 86.8% of the city's population. In 1950, the population peaked at more than two million residents, then began to decline with the restructuring of industry that led to the loss of many middle-class union jobs. In addition, suburbanization enticed many affluent residents to depart
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#17327729501225356-399: The city's tallest building. The Comcast Technology Center was completed in 2018, reaching a height of 1,121 ft (342 m), as the tallest building in the United States outside of Manhattan and Chicago. For much of Philadelphia's history, the typical home has been the row house . The row house was introduced to the United States via Philadelphia in the early 19th century and, for
5459-519: The city's total park space, including municipal, state, and federal parks in the city, amounts to 11,211 acres (17.5 sq mi). Philadelphia's largest park is Fairmount Park , which includes the Philadelphia Zoo and encompasses 2,052 acres (3.2 sq mi) of the total parkland. Fairmount Park's adjacent Wissahickon Valley Park contains 2,042 acres (3.2 sq mi). Fairmount Park, when combined with Wissahickon Valley Park,
5562-403: The city, Philadelphia is one of the nation's leading centers for higher education and academic research . The city is a national cultural center, hosting more outdoor sculptures and murals than any other city in the nation. Fairmount Park , when combined with adjacent Wissahickon Valley Park in the same watershed , is 2,052 acres (830 ha), representing one of the nation's largest and
5665-694: The city. The Liberty Bell was taken to Zion German Reformed Church in Northampton Town, which is present-day Allentown , where it was hidden under the church's floor boards for nine months from September 1777 until the British Army's departure from Philadelphia in June 1778. Two Revolutionary War battles, the Siege of Fort Mifflin , fought between September 26 and November 16, 1777, and the Battle of Germantown , fought on October 4, 1777, took place within Philadelphia's city limits. In Philadelphia,
5768-529: The colonies made it a natural center for America's revolutionaries . By the 1750s, Philadelphia surpassed Boston as the largest city and busiest port in British America , and the second-largest city in the entire British Empire after London . In 1774, as resentment of British colonial practices and support for independence was burgeoning in the colonies, Philadelphia hosted the First Continental Congress . From 1775 to 1781, Philadelphia hosted
5871-473: The colony. Penn made a treaty of friendship with Lenape chief Tammany under an elm tree at Shackamaxon , in what is now the city's Fishtown neighborhood. Penn named the city Philadelphia, which is Greek for "brotherly love", derived from the Ancient Greek terms φίλος phílos (beloved, dear) and ἀδελφός adelphós (brother, brotherly). There were a number of cities named Philadelphia in
5974-402: The country, and the first Black Episcopal Church . The free Black community also established many schools for its children with the help of Quakers . Large-scale construction projects for new roads, canals , and railroads made Philadelphia the first major industrial city in the United States. Throughout the 19th century, Philadelphia hosted a variety of industries and businesses; the largest
6077-490: The creation of five public parks in the city which were renamed in 1824. Centre Square was renamed Penn Square ; Northeast Square was renamed Franklin Square ; Southeast Square was renamed Washington Square ; Southwest Square was renamed Rittenhouse Square ; and Northwest Square was renamed Logan Circle/Square . Center City had an estimated 183,240 residents as of 2015 , making it the second-most populated downtown area in
6180-420: The cylinder rotates, it draws excess ink onto its surface and into the cells. Acting as a squeegee , the doctor blade scrapes the cylinder before it makes contact with the paper, removing the excess ink from the non-printing (non-recessed) areas and leaving in the cells the right amount of ink required. The position of the blade relative to the nip is normally variable. Next, the substrate gets sandwiched between
6283-509: The establishment of various over-the-airwaves educational programs and the "Educasting" operation. The broadcasting unit, Triangle Broadcasting, also operated a syndication program unit, Triangle Program Sales, which was formed in 1963 to handle syndicated programs originating at the Triangle stations. In January 1964, Triangle moved its WFIL stations and broadcasting division operations into a new state-of-the-art facility at 4100 City Avenue in
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#17327729501226386-439: The few radio stations that had FCC approval to also run a television station. Annenberg was granted the license to start WFIL-TV (now WPVI ). Triangle also pioneered the concept of facsimile transmission (fax) over an FM band, transmitting its Philadelphia Inquirer as WFIL-FX. This innovative concept was short-lived as receiving equipment was both expensive and sparsely available for the average homeowner. Triangle's WFIL-TV
6489-419: The field of printed electronics . In direct gravure printing, the ink is applied directly to the cylinder and from the cylinder it is transferred to the substrate. One printing unit consists of the following components: For indirect gravure processes, the engraved cylinder transfers ink in the desired areas to a transfer roller, and the transfer roller transfers it to the substrate. The first step of Gravure
6592-446: The final image. Because gravure is capable of transferring more ink to the paper than most other printing processes, it is noted for its remarkable density range (light to shadow) and hence is a process of choice for fine art and photography reproduction, though not typically as clean an image as that of offset lithography . A shortcoming of gravure is that all images, including type and "solids," are actually printed as dots, and unless
6695-620: The first modern International Style skyscraper in the United States, the PSFS Building , designed by George Howe and William Lescaze . The 548 ft (167 m) City Hall remained the tallest building in the city until 1987 when One Liberty Place was completed. Numerous glass and granite skyscrapers were built in Center City beginning in the late 1980s. In 2007, the Comcast Center surpassed One Liberty Place to become
6798-543: The first official World's fair in the U.S. Immigrants, mostly from Ireland and Germany, settled in Philadelphia and the surrounding districts. These immigrants were largely responsible for the first general strike in North America in 1835, in which workers in the city won the ten-hour workday. The city was a destination for thousands of Irish immigrants fleeing the Great Famine in the 1840s; housing for them
6901-402: The impression roller and the gravure cylinder: this is where the ink gets transferred from the recessed cells to the web. The purpose of the impression roller is to apply force, ensuring that the entire substrate is brought into contact with the gravure cylinder, which in turn ensures even and maximum coverage of the ink. Once in contact with the substrate, the ink's surface tension pulls (part of)
7004-604: The information and statistics provided in another of Triangle's publications, the Daily Racing Form . Established in 1894 by Frank Brunell, the Form started as a tabloid with regional distribution and was purchased by Moses Annenberg in 1922. Triangle merged the regional editions into a single broadsheet in the early 1970s when it moved operations into a new facility in Hightstown, New Jersey . The Daily Racing Form
7107-688: The ink and substrate combination is set up to allow solid areas to flow together, the screen pattern of these dots can be visible to the naked eye. Gravure is an industrial printing process capable of consistent high quality printing. Since the Gravure printing process requires the creation of one cylinder for each colour of the final image, it is expensive for short runs and best suited for high volume printing. Typical uses include long-run magazines in excess of 1 million copies, mail order catalogs, consumer packaging, Sunday newspaper ad inserts, wallpaper and laminates for furniture where quality and consistency are desired. Another application area of gravure printing
7210-449: The ink out of the cell and transfers it to the substrate. Then the inked substrate goes through a dryer because it must be completely dry before going through the next color unit and accepting another coat of ink. A rotogravure printing press has one printing unit for each color , typically CMYK or cyan, magenta, yellow and key (printing terminology for black), but the number of units varies depending on what colors are required to produce
7313-429: The intersection of Germantown Avenue and Bethlehem Pike at: 40.07815 N, 75.20747 W. Philadelphia is located on the Atlantic Seaboard Fall Line that separates the Atlantic Plain from the Piedmont . The Schuylkill River's rapids at East Falls were inundated by completion of the dam at Fairmount Water Works . The city is the seat of its own county . The city is bordered by six adjacent counties: Montgomery to
7416-433: The largest financial transactions of the time. Stations are arranged by state and city of license . Philadelphia Philadelphia , colloquially referred to as Philly , is the most populous city in the U.S. state of Pennsylvania and the sixth-most populous city in the United States , with a population of 1,603,797 in the 2020 census . The city is the urban core of the larger Delaware Valley , also known as
7519-551: The last occurrence of such a temperature being July 21, 2019. The lowest officially recorded temperature was −11 °F (−24 °C) on February 9, 1934. Temperatures at or below 0 °F (−18 °C) are rare, with the last such occurrence being January 19, 1994 . The record low maximum is 5 °F (−15 °C) on February 10, 1899, and December 30, 1880. The record high minimum is 83 °F (28 °C) on July 23, 2011, and July 24, 2010. See or edit raw graph data . Philadelphia County received an ozone grade of F and
7622-546: The late 1970s and continues into the 21st century with much of the development occurring in the Center City and University City neighborhoods. But this expanded a shortage of affordable housing in the city. After many manufacturers and businesses left Philadelphia or shut down, the city started attracting service businesses and began to market itself more aggressively as a tourist destination. Contemporary glass-and-granite skyscrapers were built in Center City beginning in
7725-409: The lines "the photographers will snap us, and you'll find that you're in the rotogravure." And the song " Hooray for Hollywood " contains the line "…armed with photos from local rotos" referring to young actresses hoping to make it in the movie industry. In 1976, ex-Beatle Ringo Starr released an album titled Ringo's Rotogravure . Gravure is one of several printing techniques being actively used in
7828-444: The name TV Guide . The magazine provided local listings with feature stories and soon became the largest national weekly publication, reaching up to 23 million households at its peak in the 1970s. The 15-cents-per-copy digest-sized publication could be found at every supermarket checkout and generally sold out within a few days. The immediate success of TV Guide required Triangle to, in the later 1950s, move TV Guide's operations out of
7931-581: The nation's 56 founders formed the Continental Army and elected George Washington as its commander in 1775, and unanimously adopted the Declaration of Independence on July 4, 1776. For nine months, from September 1777 to June 1778, the city fell under British occupation during the war's Philadelphia campaign . In 1787, the U.S. Constitution was ratified in Philadelphia at the Philadelphia Convention . Philadelphia remained
8034-485: The nation's largest city until 1790, and it served as the nation's first capital from May 10, 1775, until December 12, 1776, and on four subsequent occasions until 1800, when construction of the new national capital in Washington, D.C. was completed. Philadelphia maintains extensive contemporary influence in business and industry , culture , sports , and music . With 17 four-year universities and colleges in
8137-971: The nation, including a fire company , library , and hospital . A number of philosophical societies were formed, which were centers of the city's intellectual life, including the Philadelphia Society for Promoting Agriculture (1785), the Pennsylvania Society for the Encouragement of Manufactures and the Useful Arts (1787), the Academy of Natural Sciences (1812), and the Franklin Institute (1824). These societies developed and financed new industries that attracted skilled and knowledgeable immigrants from Europe. Philadelphia's importance and central location in
8240-400: The non-image areas of the cylinder from the etchant. After etching, the resist is stripped off. The operation is analogous to the manufacture of printed circuit boards. Following engraving, the cylinder is proofed and tested, reworked if necessary, and then chrome plated. While the press is in operation, the engraved cylinder is partially immersed in the ink tray, filling the recessed cells. As
8343-449: The northwest; Bucks to the north and northeast; Burlington County, New Jersey to the east; Camden County, New Jersey to the southeast; Gloucester County, New Jersey to the south; and Delaware County to the southwest. Philadelphia was created in the 17th century, following the plan by William Penn 's surveyor Thomas Holme . Center City is structured with long, straight streets running nearly due east–west and north–south, forming
8446-1001: The photographic process to create half-tones in the printing plate. A French patent in 1860 describes a reel-fed gravure press. A collaboration between Karel Klič and Samuel Fawcett, in Lancaster resulted in the founding of the Rembrandt Intaglio Printing Company in 1895, which company produced art prints. In 1906 they marketed the first multi-colour gravure print. In 1912 Messrs Bruckman in Munich produced proofs for Bavarian postage stamps which went into production in 1914. Also in 1912 newspaper supplements printed by reel-fed gravure were on sale in London and Berlin ( The Illustrated London News and Der Weltspiegel ). Irving Berlin 's song "Easter Parade" specifically refers to this type of supplements in
8549-768: The second half of the 19th century. His contemporaries included John McArthur Jr. , Addison Hutton , Wilson Eyre , the Wilson Brothers , and Horace Trumbauer . In 1871, construction began on the Second Empire -style Philadelphia City Hall . The Philadelphia Historical Commission was created in 1955 to preserve the cultural and architectural history of the city. The commission maintains the Philadelphia Register of Historic Places , adding historic buildings, structures, sites, objects and districts as it sees fit. In 1932, Philadelphia became home to
8652-612: The situation did not change substantially until 1682, when the area was included in William Penn 's charter for Pennsylvania. In 1681, in partial repayment of a debt, Charles II of England granted Penn a charter for what would become the Pennsylvania colony . Despite the royal charter, Penn bought the land from the local Lenape in an effort to establish good terms with the Native Americans and ensure peace for
8755-467: The spine of the north–south highway system along the U.S. East Coast . Philadelphia is a city of many firsts, including the nation's first library (1731), hospital (1751), medical school (1765), national capital (1774), university (by some accounts) (1779), central bank (1781), stock exchange (1790), zoo (1874), and business school (1881). Philadelphia contains 67 National Historic Landmarks , including Independence Hall . From
8858-624: The suburban Philadelphia Main Line region. WFIL-TV is credited with pioneering the "Action News" format. In 1969, Triangle Publications sold The Philadelphia Inquirer and the Philadelphia Daily News to Knight Newspapers (later Knight-Ridder Newspapers) to comply with federal regulations restricting ownership of multiple media outlets within the same market. Pennsylvania Governor Milton Shapp had complained that Triangle had used its three Pennsylvania television stations in
8961-493: The surrounding Delaware Valley in the early 17th century. The first settlements were founded by Dutch colonists , who built Fort Nassau on the Delaware River in 1623 in what is now Brooklawn, New Jersey . The Dutch considered the entire Delaware River valley to be part of their New Netherland colony. In 1638, Swedish settlers led by renegade Dutch established the colony of New Sweden at Fort Christina , located in present-day Wilmington, Delaware , and quickly spread out in
9064-522: The ten largest combined statistical areas (CSAs) were ranked higher for ozone: Los Angeles (1st), New York City (9th), Houston (12th), Dallas (13th), and San Jose, California (18th). Many smaller CSAs were also ranked higher for ozone, including Sacramento (8th), Las Vegas (10th), Denver (11th), El Paso (16th), and Salt Lake City (20th). Only two of those same ten CSAs, San Jose and Los Angeles, were ranked higher than Philadelphia for both year-round and short-term particle pollution. As of
9167-629: The upper Ohio River basin. Following the American Revolutionary War and subsequent formation of an independent United States, the Lenape began moving further west. In the 1860s, the United States government sent most remaining Lenape in the eastern United States to the Indian Territory in present-day Oklahoma and surrounding territories as part of the Indian removal policy. Europeans first entered Philadelphia and
9270-587: The valley. In 1644, New Sweden supported the Susquehannocks in their war against Maryland colonists. In 1648, the Dutch built Fort Beversreede on the west bank of the Delaware, south of the Schuylkill River near the present-day Eastwick section of Philadelphia, to reassert their dominion over the area. The Swedes responded by building Fort Nya Korsholm , or New Korsholm , named after
9373-491: The year. The average window for freezing temperatures is November 6 to April 2, allowing a growing season of 217 days. Early fall and late winter are generally dry, with February having the lowest average precipitation at 2.75 inches (70 mm). The dewpoint in the summer averages between 59.1 and 64.5 °F (15 and 18 °C). The highest recorded temperature was 106 °F (41 °C) on August 7, 1918. Temperatures at or above 100 °F (38 °C) are not common, with
9476-541: Was 30.7 in (78 cm), which occurred in January 1996. Precipitation is generally spread throughout the year, with eight to eleven wet days per month, at an average annual rate of 44.1 inches (1,120 mm), but historically ranging from 29.31 in (744 mm) in 1922 to 64.33 in (1,634 mm) in 2011. The most rain recorded in one day occurred on July 28, 2013, when 8.02 in (204 mm) fell at Philadelphia International Airport . Philadelphia has
9579-472: Was being constructed and prepared to serve as the new national capital. In 1793, the largest yellow fever epidemic in U.S. history killed approximately 4,000 to 5,000 people in Philadelphia, or about ten percent of the city's population at the time. The capital of the United States was moved to Washington, D.C. in 1800 upon completion of the White House and U.S. Capitol buildings. The state capital
9682-514: Was developed south of South Street and later occupied by succeeding immigrants. They established a network of Catholic churches and schools and dominated the Catholic clergy for decades. Anti- Irish , anti-Catholic nativist riots erupted in Philadelphia in 1844. The rise in population of the surrounding districts helped lead to the Act of Consolidation of 1854 , which extended the city limits from
9785-482: Was dominated by Georgian architecture , including Independence Hall and Christ Church . In the first decades of the 19th century, Federal and Greek Revival architecture were the dominant styles produced by Philadelphia architects such as Benjamin Latrobe , William Strickland , John Haviland , John Notman , Thomas Walter , and Samuel Sloan . Frank Furness is considered Philadelphia's greatest architect of
9888-628: Was formed by Walter Annenberg in 1947 from the assets and properties of the Cecelia Corporation , a company founded by his father, Moses Annenberg , and named for his mother, Sarah "Sadie" Cecelia Annenberg. Cecelia Corporation's assets at the time included the Daily Racing Form , the Morning Telegraph in New York City, and The Philadelphia Inquirer , a daily newspaper based in Philadelphia . It later started or acquired other publications, including Armstrong Daily ,
9991-454: Was later revived, in 1985, with Alexandra Mayes Birnbaum as the editor-in-chief, who was succeeded by Annie Pleshette Murphy. It was similarly marketed, alongside TV Guide, in supermarkets. It was aimed at middle-class shoppers, introducing them to new produce and new cooking ideas and techniques. It had several columnists, including Road Food is Good Food by Jane and Michael Stern, instruction in microwave cooking and other features. Sarah Scrymser
10094-529: Was moved from Philadelphia to Lancaster in 1799, then ultimately to Harrisburg in 1812. Philadelphia remained the nation's largest city until the late 18th century. It also was the nation's financial and cultural center until ultimately being eclipsed in total population by New York City in 1790. In 1816, the city's free Black community founded the African Methodist Episcopal Church , the first independent Black denomination in
10197-479: Was one of Triangle's most profitable publications. A sister newspaper, The Morning Telegraph , was closed by Triangle during a strike. In the early 1970s, Triangle launched Good Food , a digest-sized publication featuring recipes and feature stories, targeting average households. The magazine was designed and marketed along the same lines as TV Guide . Publication of the magazine was suspended after approximately six months due to minimal interest by consumers. It
10300-406: Was one of more than 36 industrial cities nationally to suffer a race riot during Red Summer in post- World War I unrest as recent immigrants competed with Blacks for jobs. In the 1920s, the public flouting of Prohibition laws, organized crime , mob violence, and corrupt police involvement in illegal activities led to the appointment of Brig. Gen. Smedley Butler of the U.S. Marine Corps as
10403-713: Was the textile industry . Major corporations in the 19th and early 20th centuries included the Baldwin Locomotive Works , William Cramp & Sons Shipbuilding Company , and the Pennsylvania Railroad . Established in 1870, the Philadelphia Conveyancers' Association was chartered by the state in 1871. Along with the U.S. Centennial in 1876, the city's industry was celebrated in the Centennial Exposition ,
10506-627: Was the Production Director. Tally Sue Hohlfeld was the Copy Editor, Saul Davis was the Editorial Production Assistant. It was a fairly small but effective, well-organized staff of less than thirty people. Lori Longbotham and Barbara Ottenhoff were leaders of the test kitchen recipe editing. Good Food was shut down after Triangle Communications was sold, as it was not yet fully profitable. Triangle entered
10609-564: Was the first affiliate of the new American Broadcasting Company (ABC) network. While owned by Triangle, WFIL's AM , FM, and television stations were first broadcast from the Widener Building in Center City, Philadelphia . In 1948, Triangle built the first broadcast center specifically designed for television, at 4645 Market Street in Philadelphia, which later became the home of American Bandstand with Dick Clark . Triangle had hired Clark in 1952 to be an announcer, and, later,
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