1.
Image resolution
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Image resolution is the detail an image holds. The term applies to digital images, film images. Higher resolution means more image detail, image resolution can be measured in various ways. Resolution quantifies how close lines can be to other and still be visibly resolved. Resolution units can be tied to physical sizes, to the size of a picture. Line pairs are used instead of lines, a line pair comprises a dark line. A line is either a line or a light line. A resolution of 10 lines per millimeter means 5 dark lines alternating with 5 light lines, photographic lens and film resolution are most often quoted in line pairs per millimeter. The resolution of digital cameras can be described in different ways. Resolution is the capability of the sensor to observe or measure the smallest object clearly with distinct boundaries, there is a difference between the resolution and a pixel. A pixel is actually a unit of the digital Resolution depends upon the size of the pixel, usually, with any given lens setting, the smaller the size of the pixel, the higher the resolution will be and the clearer the object in the image will be. Images having smaller pixel sizes might consist of more pixels, the number of pixels correlates to the amount of information within the image. An image of N pixels height by M pixels wide can have any less than N lines per picture height. Other conventions include describing pixels per unit or pixels per area unit. None of these pixel resolutions are true resolutions, but they are referred to as such. Below is an illustration of how the image might appear at different pixel resolutions. An image that is 2048 pixels in width and 1536 pixels in height has a total of 2048×1536 =3,145,728 pixels or 3.1 megapixels, one could refer to it as 2048 by 1536 or a 3. 1-megapixel image. Or, you can think of it as a low quality image if printed at about 28.5 inches wide
2.
Aspect ratio (image)
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The aspect ratio of an image describes the proportional relationship between its width and its height. It is commonly expressed as two separated by a colon, as in 16,9.5 yards high. The most common ratios used today in the presentation of films in cinemas are 1.85,1 and 2.39,1. Two common videographic aspect ratios are 4,3, the video format of the 20th century. Other cinema and video aspect ratios exist, but are used infrequently, in still camera photography, the most common aspect ratios are 4,3,3,2, and more recently being found in consumer cameras 16,9. Other aspect ratios, such as 5,3,5,4, in motion picture formats, the physical size of the film area between the sprocket perforations determines the images size. The universal standard is a frame that is four perforations high, the film itself is 35 mm wide, but the area between the perforations is 24.89 mm×18.67 mm, leaving the de facto ratio of 4,3, or 1.33,1. A4,3 ratio mimics human eyesight visual angle of 155°h x 120°v, the motion picture industry convention assigns a value of 1.0 to the image’s height, an anamorphic frame is often incorrectly described as 2.40,1 or 2.40. After 1952, a number of aspect ratios were experimented with for anamorphic productions, a SMPTE specification for anamorphic projection from 1957 finally standardized the aperture to 2.35,1. An update in 1970 changed the ratio to 2.39,1 in order to make splices less noticeable. This aspect ratio of 2.39,1 was confirmed by the most recent revision from August 1993, in American cinemas, the common projection ratios are 1.85,1 and 2.39,1. Some European countries have 1.66,1 as the wide screen standard, the Academy ratio of 1.375,1 was used for all cinema films in the sound era until 1953. During that time, television, which had a aspect ratio of 1.33,1. Hollywood responded by creating a number of wide-screen formats, CinemaScope, Todd-AO. The flat 1.85,1 aspect ratio was introduced in May 1953, and became one of the most common cinema projection standards in the U. S. and elsewhere. The goal of these lenses and aspect ratios was to capture as much of the frame as possible, onto as large an area of the film as possible. In either case the image was squeezed horizontally to fit the frame size. Development of various film camera systems must ultimately cater to the placement of the frame in relation to the constraints of the perforations
3.
Cathode ray tube
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The cathode ray tube is a vacuum tube that contains one or more electron guns and a phosphorescent screen, and is used to display images. It modulates, accelerates, and deflects electron beam onto the screen to create the images, the images may represent electrical waveforms, pictures, radar targets, or others. CRTs have also used as memory devices, in which case the visible light emitted from the fluorescent material is not intended to have significant meaning to a visual observer. In television sets and computer monitors, the front area of the tube is scanned repetitively and systematically in a fixed pattern called a raster. An image is produced by controlling the intensity of each of the three beams, one for each additive primary color with a video signal as a reference. A CRT is constructed from an envelope which is large, deep, fairly heavy. The interior of a CRT is evacuated to approximately 0.01 Pa to 133 nPa. evacuation being necessary to facilitate the flight of electrons from the gun to the tubes face. That it is evacuated makes handling an intact CRT potentially dangerous due to the risk of breaking the tube and causing a violent implosion that can hurl shards of glass at great velocity. As a matter of safety, the face is made of thick lead glass so as to be highly shatter-resistant and to block most X-ray emissions. Flat panel displays can also be made in large sizes, whereas 38 to 40 was about the largest size of a CRT television, flat panels are available in 60. Cathode rays were discovered by Johann Hittorf in 1869 in primitive Crookes tubes and he observed that some unknown rays were emitted from the cathode which could cast shadows on the glowing wall of the tube, indicating the rays were traveling in straight lines. In 1890, Arthur Schuster demonstrated cathode rays could be deflected by electric fields, the earliest version of the CRT was known as the Braun tube, invented by the German physicist Ferdinand Braun in 1897. It was a diode, a modification of the Crookes tube with a phosphor-coated screen. In 1907, Russian scientist Boris Rosing used a CRT in the end of an experimental video signal to form a picture. He managed to display simple geometric shapes onto the screen, which marked the first time that CRT technology was used for what is now known as television. The first cathode ray tube to use a hot cathode was developed by John B. Johnson and Harry Weiner Weinhart of Western Electric and it was named by inventor Vladimir K. Zworykin in 1929. RCA was granted a trademark for the term in 1932, it released the term to the public domain in 1950. The first commercially made electronic television sets with cathode ray tubes were manufactured by Telefunken in Germany in 1934, in oscilloscope CRTs, electrostatic deflection is used, rather than the magnetic deflection commonly used with television and other large CRTs
4.
United States
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Forty-eight of the fifty states and the federal district are contiguous and located in North America between Canada and Mexico. The state of Alaska is in the northwest corner of North America, bordered by Canada to the east, the state of Hawaii is an archipelago in the mid-Pacific Ocean. The U. S. territories are scattered about the Pacific Ocean, the geography, climate and wildlife of the country are extremely diverse. At 3.8 million square miles and with over 324 million people, the United States is the worlds third- or fourth-largest country by area, third-largest by land area. It is one of the worlds most ethnically diverse and multicultural nations, paleo-Indians migrated from Asia to the North American mainland at least 15,000 years ago. European colonization began in the 16th century, the United States emerged from 13 British colonies along the East Coast. Numerous disputes between Great Britain and the following the Seven Years War led to the American Revolution. On July 4,1776, during the course of the American Revolutionary War, the war ended in 1783 with recognition of the independence of the United States by Great Britain, representing the first successful war of independence against a European power. The current constitution was adopted in 1788, after the Articles of Confederation, the first ten amendments, collectively named the Bill of Rights, were ratified in 1791 and designed to guarantee many fundamental civil liberties. During the second half of the 19th century, the American Civil War led to the end of slavery in the country. By the end of century, the United States extended into the Pacific Ocean. The Spanish–American War and World War I confirmed the status as a global military power. The end of the Cold War and the dissolution of the Soviet Union in 1991 left the United States as the sole superpower. The U. S. is a member of the United Nations, World Bank, International Monetary Fund, Organization of American States. The United States is a developed country, with the worlds largest economy by nominal GDP. It ranks highly in several measures of performance, including average wage, human development, per capita GDP. While the U. S. economy is considered post-industrial, characterized by the dominance of services and knowledge economy, the United States is a prominent political and cultural force internationally, and a leader in scientific research and technological innovations. In 1507, the German cartographer Martin Waldseemüller produced a map on which he named the lands of the Western Hemisphere America after the Italian explorer and cartographer Amerigo Vespucci
5.
The Walt Disney Company
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The Walt Disney Company, commonly known as Disney, is an American diversified multinational mass media and entertainment conglomerate, headquartered at the Walt Disney Studios in Burbank, California. It is the second largest media conglomerate in terms of revenue. Disney was founded on October 16,1923 – by brothers Walt Disney, the company also operated under the names The Walt Disney Studio and then Walt Disney Productions. Taking on its current name in 1986, it expanded its operations and also started divisions focused upon theater, radio, music, publishing. In addition, Disney has since created corporate divisions in order to more mature content than is typically associated with its flagship family-oriented brands. The company is best known for the products of its studio, Walt Disney Studios. Disneys other three divisions are Walt Disney Parks and Resorts, Disney Media Networks, and Disney Consumer Products. The company has been a component of the Dow Jones Industrial Average since May 6,1991, Mickey Mouse, an early and well-known cartoon creation of the company, is a primary symbol and mascot for Disney. In early 1923, Kansas City, Missouri, animator Walt Disney created a film entitled Alices Wonderland. After the bankruptcy in 1923 of his previous firm, Laugh-O-Gram Studios, Disney moved to Hollywood to join his brother, Walt and Roy Disney formed Disney Brothers Cartoon Studio that same year. More animated films followed after Alice, in January 1926, with the completion of the Disney studio on Hyperion Street, the Disney Brothers Studios name was changed to the Walt Disney Studio. The distributor owned Oswald, so Disney only made a few hundred dollars, Disney completed 26 Oswald shorts before losing the contract in February 1928, due to a legal loophole, when Winklers husband Charles Mintz took over their distribution company. After failing to take over the Disney Studio, Mintz hired away four of Disneys primary animators to start his own animation studio, Snappy Comedies. In 1928, to recover from the loss of Oswald the Lucky Rabbit, Disney came up with the idea of a character named Mortimer while on a train headed to California. The mouse was later renamed Mickey Mouse and starred in several Disney produced films, ub Iwerks refined Disneys initial design of Mickey Mouse. Disneys first sound film Steamboat Willie, a cartoon starring Mickey, was released on November 18,1928 through Pat Powers distribution company and it was the first Mickey Mouse sound cartoon released, but the third to be created, behind Plane Crazy and The Gallopin Gaucho. Disney used Pat Powers Cinephone system, created by Powers using Lee De Forests Phonofilm system, Steamboat Willie premiered at B. S. Mosss Colony Theater in New York City, now The Broadway Theatre. Disneys Plane Crazy and The Galloping Gaucho were then retrofitted with synchronized sound tracks, Disney continued to produce cartoons with Mickey Mouse and other characters, and began the Silly Symphonies series with Columbia Pictures signing on as Symphonies distributor in August 1929
6.
Weather forecasting
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Weather forecasting is the application of science and technology to predict the state of the atmosphere for a given location. Human beings have attempted to predict the weather informally for millennia, hence, forecasts become less accurate as the difference between current time and the time for which the forecast is being made increases. The use of ensembles and model consensus help narrow the error, there are a variety of end uses to weather forecasts. Weather warnings are important forecasts because they are used to protect life, forecasts based on temperature and precipitation are important to agriculture, and therefore to traders within commodity markets. Temperature forecasts are used by utility companies to estimate demand over coming days, on an everyday basis, people use weather forecasts to determine what to wear on a given day. Since outdoor activities are severely curtailed by rain, snow and wind chill, forecasts can be used to plan activities around these events. In 2014, the US spent $5.1 billion on weather forecasting, for millennia people have tried to forecast the weather. In 650 BC, the Babylonians predicted the weather from cloud patterns as well as astrology, in about 340 BC, Aristotle described weather patterns in Meteorologica. Later, Theophrastus compiled a book on weather forecasting, called the Book of Signs, chinese weather prediction lore extends at least as far back as 300 BC, which was also around the same time ancient Indian astronomers developed weather-prediction methods. You know how to interpret the appearance of the sky, ancient weather forecasting methods usually relied on observed patterns of events, also termed pattern recognition. For example, it might be observed if the sunset was particularly red. This experience accumulated over the generations to produce weather lore, however, not all of these predictions prove reliable, and many of them have since been found not to stand up to rigorous statistical testing. It was not until the invention of the telegraph in 1835 that the modern age of weather forecasting began. Before that, the fastest that distant weather reports could travel was around 100 miles per day, the two men credited with the birth of forecasting as a science were officer of the Royal Navy Francis Beaufort and his protégé Robert FitzRoy. Beaufort developed the Wind Force Scale and Weather Notation coding, which he was to use in his journals for the remainder of his life. He also promoted the development of reliable tide tables around British shores, Robert FitzRoy was appointed in 1854 as chief of a new department within the Board of Trade to deal with the collection of weather data at sea as a service to mariners. This was the forerunner of the modern Meteorological Office, all ship captains were tasked with collating data on the weather and computing it, with the use of tested instruments that were loaned for this purpose. Fifteen land stations were established to use the new telegraph to transmit to him daily reports of weather at set times leading to the first gale warning service and his warning service for shipping was initiated in February 1861, with the use of telegraph communications
7.
Television set
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A television set, more commonly called a television, TV, TV set, television receiver, or telly, is a device that combines a tuner, display, and loudspeakers for the purpose of viewing television. Introduced in the late 1920s in mechanical form, television became a popular consumer product after World War II in electronic form. The addition of color to broadcast television after 1953 further increased the popularity of television sets in the 1960s, the ubiquitous television set became the display device for the first recorded media in the 1970s, such as Betamax, VHS and later DVD. It was also the display device for the first generation of home computers, in the 2010s flat panel television incorporating liquid-crystal displays, especially LED-backlit LCDs, largely replaced cathode ray tubes and other displays. Modern flat panel TVs are typically capable of display and can also play content from a USB device. Mechanical televisions were sold from 1928 to 1934 in the United Kingdom, United States. The Baird Televisor is considered the first mass-produced television, selling about a thousand units, the first commercially made electronic televisions with cathode ray tubes were manufactured by Telefunken in Germany in 1934, followed by other makers in France, Britain, and America. The cheapest model with a 12-inch screen was $445, an estimated 19,000 electronic televisions were manufactured in Britain, and about 1,600 in Germany, before World War II. About 7, 000–8,000 electronic sets were made in the U. S. before the War Production Board halted manufacture in April 1942, production resuming in August 1945. While only 0. 5% of U. S. households had a television in 1946,55. 7% had one in 1954, and 90% by 1962. In Britain, there were 15,000 television households in 1947,1.4 million in 1952, by the late 1960s and early 1970s, color television had come into wide use. In Britain, BBC1, BBC2 and ITV were regularly broadcasting in colour by 1969, during the first decade of the 21st century, CRT picture tube display technology was almost entirely supplanted worldwide by flat panel displays. By the early 2010s, LCD TVs, which increasingly used LED-backlit LCDs, television sets may employ one of several available display technologies. The production of plasma and CRT displays has been almost completely discontinued, the cathode ray tube is a vacuum tube containing one or more electron guns and a fluorescent screen used to view images. It has a means to accelerate and deflect the beam onto the screen to create the images. The images may represent electrical waveforms, pictures, radar targets or others, the CRT uses an evacuated glass envelope which is large, deep, fairly heavy, and relatively fragile. As a matter of safety, the face is made of thick lead glass so as to be highly shatter-resistant and to block most X-ray emissions. In television sets and computer monitors, the front area of the tube is scanned repetitively and systematically in a fixed pattern called a raster
8.
Pixel
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The address of a pixel corresponds to its physical coordinates. LCD pixels are manufactured in a grid, and are often represented using dots or squares. Each pixel is a sample of an image, more samples typically provide more accurate representations of the original. The intensity of each pixel is variable, in color imaging systems, a color is typically represented by three or four component intensities such as red, green, and blue, or cyan, magenta, yellow, and black. The word pixel is based on a contraction of pix and el, the word pixel was first published in 1965 by Frederic C. Billingsley of JPL, to describe the elements of video images from space probes to the Moon. Billingsley had learned the word from Keith E. McFarland, at the Link Division of General Precision in Palo Alto, McFarland said simply it was in use at the time. The word is a combination of pix, for picture, the word pix appeared in Variety magazine headlines in 1932, as an abbreviation for the word pictures, in reference to movies. By 1938, pix was being used in reference to pictures by photojournalists. The concept of a picture element dates to the earliest days of television, some authors explain pixel as picture cell, as early as 1972. In graphics and in image and video processing, pel is often used instead of pixel, for example, IBM used it in their Technical Reference for the original PC. A pixel is generally thought of as the smallest single component of a digital image, however, the definition is highly context-sensitive. For example, there can be printed pixels in a page, or pixels carried by electronic signals, or represented by digital values, or pixels on a display device, or pixels in a digital camera. This list is not exhaustive and, depending on context, synonyms include pel, sample, byte, bit, dot, Pixels can be used as a unit of measure such as,2400 pixels per inch,640 pixels per line, or spaced 10 pixels apart. For example, a high-quality photographic image may be printed with 600 ppi on a 1200 dpi inkjet printer, even higher dpi numbers, such as the 4800 dpi quoted by printer manufacturers since 2002, do not mean much in terms of achievable resolution. The more pixels used to represent an image, the closer the result can resemble the original, the number of pixels in an image is sometimes called the resolution, though resolution has a more specific definition.3 megapixels. The pixels, or color samples, that form an image may or may not be in one-to-one correspondence with screen pixels. In computing, a composed of pixels is known as a bitmapped image or a raster image
9.
Hearst Television
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Hearst Television, Inc. is a broadcasting company in the United States, owned by the New York City-based Hearst. From 1998 to mid-2009, the company traded its stock on the New York Stock Exchange under the symbol HTV. Hearsts involvement in broadcasting dates to the 1920s, other Hearst-owned stations also carry ESPN-aired NFL games, even though they are affiliated with other networks. Hearst also holds some joint ventures for syndicated programming with NBCUniversal Television Distribution, in June 2009, the Hearst Corporation announced that it would purchase substantially all of the stock not held by Hearst. Hearst-Argyle Television then dropped Argyle from its name and became a wholly owned subsidiary of the Hearst Corporation, in February 2009 Hearst-Argyle announced that its stations would comply with the new DTV transition date of June 12,2009. Since December 1,2014, Des Moines CBS affiliate KCCI has used their third subchannel as an H&I affiliate carrying MyNetworkTV programming in primetime. Hearst also owns two stations in Baltimore, the last remaining from the company divesting most of their radio assets after the Telecommunications Act of 1996 went into effect. Hearst also maintains a Washington, D. C. bureau to assist their stations in coverage of politics, including on-air reporters and facilities. Many Hearst stations license the Operation High School branding for coverage of high school sports. Until 2009, three of Hearsts television stations and its two stations were owned by Hearst Broadcasting, Inc. These stations were transferred to Hearst Television shortly after its privatization, the deal will close on February 1. Stations are listed alphabetically by state and city of license, note, – Indicates a station that was built and signed-on by Hearst. – Indicates a station that was owned by Argyle Television Holdings II prior to the formation of Hearst-Argyle Television in 1997, – Indicates a station that was affected by an ownership swap between Hearst-Argyle and Sunrise Television in 1998. – Indicates a station that was owned by Kelly Broadcasting prior to its acquisition by Hearst-Argyle in 1999, – Indicates a station that was owned by Pulitzer prior to its acquisition by Hearst-Argyle in 1999. Other Notes,1 KCWE in Kansas City has been managed by Hearst since its sign-on in 1996, Notes,1 WDTN was an ABC affiliate under Hearst during its ownership, LIN switched the stations affiliation back to NBC in 2004. 2 WNAC-TV was owned by Argyle, but operated from 1996 to 2001 by Clear Channel Communications under a local marketing agreement with WPRI-TV, in addition to the above, Hearst-Argyle never owned WZZM or WGRZ. Those two stations were divested by one of the predecessors, Argyle Television Holdings II, several months prior to the merger with Hearst Broadcasting. The years owned information reflects the years of ownership by Argyle Television Holdings II, and WDTN was the only formerly owned television station that was owned directly by Hearst prior to the merger
10.
Comcast
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Comcast Corporation is an American global telecommunications conglomerate that is the largest broadcasting and cable television company in the world by revenue. Comcast services U. S. residential and commercial customers in 40 states, the companys headquarters are located in Philadelphia, Pennsylvania. The first Universal theme park outside of the U. S, Universal Studios Japan, opened in 2001, followed by Universal Studios Singapore in 2011. Few new locations are being planned or developed for future operation, Comcast also has significant holdings in digital distribution. In February 2014 the company agreed to merge with Time Warner Cable in an equity swap deal worth $45.2 billion, under the terms of the agreement Comcast was to acquire 100% of Time Warner Cable. However, on April 24,2015, Comcast terminated the agreement, Comcast has been criticized for multiple reasons, the companys customer satisfaction often ranks among the lowest in the cable industry. Critics also point out a lack of competition in the vast majority of Comcasts service area, furthermore, given Comcasts negotiating power as a large ISP, some suspect that Comcast could leverage paid peering agreements to unfairly influence end-user connection speeds. And its ownership of content production and content distribution has raised antitrust concerns. These issues, in addition to others, led to Comcast being dubbed The Worst Company in America by The Consumerist in 2010 and 2014. Despite being publicly-traded, Comcast is a business, with the Ralph J Roberts family owning 33% controlling stake. Comcast is sometimes described as a family business, Brian L. Roberts, Chairman, President, and CEO of Comcast, is the son of co-founder Ralph Roberts. Roberts owns or controls just over 1% of all Comcast shares but all of the Class B supervoting shares, legal expert Susan P. Crawford has said this gives him effective control over every step. In 2010, he was one of the highest paid executives in the United States, Comcast is headquartered in Philadelphia, Pennsylvania, and also has corporate offices in Atlanta, Detroit, Denver, and Manchester, New Hampshire. On January 3,2005, Comcast announced that it would become the tenant in the new Comcast Center in downtown Philadelphia. The 975 ft skyscraper is the tallest building in Pennsylvania, Comcast has begun construction on a second 1,121 ft skyscraper directly adjacent to the original Comcast headquarters in the summer of 2014. The company is criticized by both the media and its own staff for its less upstanding policies regarding employee relations. A2012 Reddit post written by an anonymous Comcast call center employee eager to share their experiences with the public received attention from publications including The Huffington Post. A2014 investigative series published by The Verge involved interviews with 150 of Comcasts employees and it sought to examine why the company has become so widely criticized by its customers, the media and even members of its own staff
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