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KVLY

KVLY

KVLY channel 11 (44 digital) is the NBC television affiliate based in Fargo, North Dakota that serves much of eastern North Dakota and northwestern Minnesota. The station is most notable for using the tallest above-ground structure in the world for broadcasting its signal. The KVLY-TV mast rises 2,063 feet (628.8 m) high, and set the standard for current height limitations in the United States. KXJB channel 4 operates the second-tallest tower in the world. KXJB and KVLY are housed in the same building. The station's call sign was changed from KTHI (for "The HIgh tower") to KVLY in 1995. The current call sign represents the station's slogan, "The Valley's Choice for Local News," as it serves the communities along the Red River of the North and its tributaries. Longtime personalities at the station include Charley Johnson, who is now General Manager in addition to being an evening news anchor, and Tom Szymanski, KVLY's 6' 10" (208 cm) meteorologist. KVLY is owned by NBC North Dakota, a division of NDTV, LLC, a holding company of Wicks Media Group.

External link

- [http://www.kvlytv11.com/ KVLY]
- Category:NBC network affiliates

Digital television

Digital television (DTV) uses digital modulation and compression to broadcast video, audio and data signals to television sets.

Introduction

A major use of DTV can be to carry more channels in the same amount of bandwidth. Another can be high-definition programming. The digital signal eliminates common analog broadcasting artifacts such as "ghosting", "snow", and static noises in audio. It can replace them with new MPEG compression artifacts, such as "blocking", when transmitted at too low a data rate, and may fail to work entirely in situations where analog television would have produced an impaired but watchable picture. Depending on the sophistication and level of the error correction defined by the standard and chosen by the broadcaster, DTV may either work perfectly or not work at all. The switch-over to DTV systems often coincides with a change in picture format from an aspect ratio of 4:3 to one of 16:9. This enables TV to get closer to the aspect ratio of movies and human vision. On traditional screens this leads to "letterbox" black bars above and below the picture due to placing the 16:9 picture in a 4:3 frame. The previous aspect ratio of 4:3 was chosen to match the Academy of Motion Picture Arts and Sciences standard ratio of the day.

Market

Terrestrial

Digital terrestrial television (DTT) is in the process of deployment in a number of countries.
- Governments see DTT as a "futuristic" technology that will push their country to the forefront of the "digital revolution" and free up existing TV frequencies for resale, for example to communications operators.
- Broadcasters see DTT as a way to fight competition from satellite and cable DTV and other digital program distribution technologies, such as personal digital video recorders (PVR) and video on demand (VoD).
- Hardware manufacturers see DTT as a way to sell set-top boxes first and new all-in-one TV sets later.
- Consumers see DTT as a way to obtain more programs from their existing TV antenna at the cost of a set-top box or new television. In some countries, DTT is seen as a technology that is being pushed on a public that does not exhibit much demand for it. This is particularly so in countries where high-definition programs are broadcast terrestrially, since HDTV sets are at the moment prohibitively expensive, and very little HDTV content exists apart from movies.

Satellite

DTV has been shown to be commercially viable in the satellite television market, where it is used to multiplex large numbers of channels onto the available bandwidth. The business model for satellite DTV in the U.S. and the UK is similar to that for cable TV. Satellite DTV operators tend to act as packagers for large numbers of channels, including pay-TV. The greater RF bandwidth available to satellite operators allows them to out-compete terrestrial DTV operators on both number of channels and picture quality.

Cable

Where an original analog cable set-top box is already required this has to be replaced to receive digital cable. From a user's point of view the main advantage appears to be simply better picture quality and more channel availability, however (depending on the choices operators make regarding set-top box hardware and middleware software) many other features become possible with the transfer away from analog. Often a TV guide (seven-day schedules) with extended information can be viewed, reminders to watch programs can be set and advanced parental censorship on channel content can be exercised. Operators also enjoy better CA (conditional access) on digitally transmitted streams as they can be sent "encrypted" with schemes such as DES encryption to help prevent unauthorized access and protect revenues. Operators wishing to increase the carrying capacity of their original networks have to replace all analog set-top boxes with digital replacements before turning off the analog feeds; this is not a trivial or low-cost solution as literally millions of set-top boxes require replacement. Some of the more advanced cable networks even have the use of a return path (a two-way data communications path to allow DTV set-top boxes to return information back to the operators head-end). This allows them to extend services offered to include interactive web style content viewing, gaming, voting and other "on-demand" services such as control of video on-demand films.

IPTV

Main article: IPTV Internet technologies are finally starting to be adapted for use with DTV deployments, meaning a single broadband Internet connection will eventually service one's home providing one with Triple Play (voice over IP, Internet access, and digital television). IPTV is a big step forward when combined with the latest advancements in picture quality such as high-definition (HDTV) and new AVC (Advanced Video Compression) standards such as MPEG4 H.264 or WM9 (very efficient emerging picture compression standards). Not only are set-top boxes becoming smarter (they are essentially cut down PC's in their own right) they will interact with other devices such as PDA's, mobile phones, and the Internet to provide a truly flexible solution allowing local information to be tailored to specific regions (e.g. weather and news from your local area).

Analog switch-off

In general, viewers who are happy with their existing analog TV systems tend not to adopt terrestrial DTV systems (so-called "digital refuseniks"). There is also a significant number of DVB or free-to-air satellite viewers who retain analogue terrestrial capability solely for news, sport, or other purely local broadcasts. The cost of a second digital set-top box for each TV just for a few local channels may be difficult to justify if these households already watch digital signals on most channels and have capital tied up in DVB-S or proprietary dish hardware. In the subscription-TV market, many who want cable-TV-like services buy either cable TV (where available) or satellite DTV. As such, those most able to afford terrestrial DTV equipment are the ones abandoning OTA reception for satellite or other signal sources which provide a wider selection of programming. Governments are responding to this with an attempt to force the issue by enforcing planned "switch-off" dates for analog television, but are encountering resistance from the public, as they fear that this will mean that they will need to replace every television they own, including portable TVs and bedroom TVs, or buy additional digital receivers (a set-top box). In the United States, many broadcasters have requested repeated extensions of the original 2002 deadline for ATSC availability or transmit ATSC only at significantly lower power than their main signal. The capital cost to build even an underpowered digital transmitter becomes particularly onerous for small-market stations (see KXGN). Legislation is currently pending that will mandate the analog switch-off for 2009, three years after the date originally suggested by the FCC. See List of digital television deployments by country.

Technical

Formats

All digital TV variants can carry both standard-definition television (SDTV) and high-definition television (HDTV). All early SDTV television standards were analog in nature, and SDTV digital television systems derive much of their structure from the need to be compatible with analog television. In particular, the interlaced scan is a legacy of analog television. Attempts were made during the development of digital television to prevent a repeat of the fragmentation of the global market into different standards (that is, PAL, SÉCAM, NTSC). However, once again the world could not agree on a single standard, and hence there are two major standards in existence: the European DVB system and the U.S. ATSC system, plus the Japanese system ISDB. Note: For cable, in addition to ATSC standards, the SCTE standard is used to describe Cable out-of-band metadata. Most countries in the world have adopted DVB, but several have followed the U.S. in adopting ATSC instead (Canada, Mexico, South Korea). Korea has adopted S-DMB for satellite mobile broadcasting. There could be other specialized high-resolution digital video formats in the future for markets other than home entertainment. Ultra High Definition Video (UHDV) is a format proposed by NHK of Japan that provides a resolution 16 times greater than HDTV.

Bandwidth

In current practice, HDTV uses 1280 × 720 pixels in progressive scan mode (abbreviated 720p) or 1920 × 1080 pixels in interlace mode (1080i). SDTV has less resolution (640 x 480 or 704 × 480 pixels with NTSC, 768 × 576 or 1024 × 576 with PAL in 4:3 and 16:9 aspect ratios respectively), but allows the bandwidth of a DTV channel (or "multiplex") to be subdivided into multiple sub-channels. The TV stations can use subchannels to carry multiple broadcasts of video, audio, or any other data, and can distribute their so-called "bit budget" as necessary, such as dropping one sub-channel down to a lower resolution in order to make another one available to show a wide-screen movie. Often, this is done automatically, using a statistical multiplexer (or "stat-mux"). Multiplexes can even reduce their overall bit budget and digital bandwidth, in order to reduce the transmission bitrate and make reception easier for more distant or mobile viewers.

Reception

Today most viewers receive digital television via a set-top box, which decodes the digital signals into signals that analog televisions can understand, but a slowly growing number of TV sets with integrated receivers are already available. Access to channels can be controlled by a removable smart card, for example via the Common Interface (DVB-CI) standard for Europe and via Point Of Deployment (POD) for IS or named differently CableCard. Some signals carry encryption and specify use conditions (such as "may not be recorded" or "may not be viewed on displays larger than 1m in diagonal measure") backed up with the force of law under the WIPO Copyright Treaty and national legislation implementing it, such as the U.S. Digital Millennium Copyright Act.

Protection parameters for terrestrial DTV broadcasting

Digital Millennium Copyright Act

Interaction

Digital teletext is an enhanced teletext service based on XHTML and CSS. Many countries, including Finland, use Multimedia Home Platform DVB-MHP for digital teletext. An alternative is the MHEG-5 platform used terrestrially in the UK. Digital teletext is supposed to provide interactive services, but for this a separate "return path", such as a telephone line or Internet connection, is required. In U.S. only, closed captioning is a subtitle service for hearing impaired people. Several languages are broadcasted. ISDB has adopted ARIB STD-B24 for interactive services. ISDB has labeled interactive services as data broadcasting. ARIB STD-B24 system is based on BML. BML is modified XML language for data broadcasting. ISDB has been providing EPG, news, weather forecast, traffic information, stock market conditions, educational program, interactive game program, TV shopping via the Internet, etc.

Deployment

List of digital television deployments by country

Television

: Television is a telecommunication system for broadcasting and receiving moving pictures and sound over a distance. The term has come to refer to all the aspects of television programming and transmission as well. programming ]]

History

The development of television technology can be partitioned along two lines: those developments that depended upon both mechanical and electronic principles, and those which are purely electronic. From the latter descended all modern televisions, but these would not have been possible without discoveries and insights from the mechanical systems. The word television is a hybrid word, created from both Greek and Latin. Tele- is Greek for "far", while -vision is from the Latin visio, meaning "vision" or "sight". It is often abbreviated as TV or the telly.

Electromechanical television

The German student Paul Gottlieb Nipkow proposed and patented the first electromechanical television system in 1885. Nipkow's spinning disk design is credited with being the first television image rasterizer. However, it wasn't until 1907 that developments in amplification tube technology made the design practical. Meanwhile, Constantin Perskyi had coined the word television in a paper read to the International Electricity Congress at the International World Fair in Paris on August 25, 1900. Perskeyi's paper reviewed the existing electromechanical technologies, mentioning the work of Nipkow and others. 1900 In 1911, Boris Rosing and his student Vladimir Kosma Zworykin achieved a television system that used a mechanical mirror-drum scanner to transmit, in Zworykin's words, "very crude images" over wires to the electronic Braun tube (cathode ray tube) in the receiver. Moving images were not possible because, in the scanner, "the sensitivity was not enough and the selenium cell was very laggy." Zworykin later went to work for RCA to build a purely electronic television, the design of which was eventually found to violate patents by Philo Taylor Farnsworth. On March 25, 1925, Scottish inventor John Logie Baird gave a demonstration of televised silhouette images at Selfridge's Department Store in London. But if television is defined as the transmission of live, moving, half-tone (grayscale) images, and not silhouette or still images, Baird achieved this privately on October 2, 1925, and gave the world's first public demonstration of a working television system to members of the Royal Institution and a newspaper reporter on January 26, 1926 at his laboratory in London. Unlike later electronic systems with several hundred lines of resolution, Baird's vertically scanned image, using a scanning disc embedded with a double spiral of lenses, had only 30 lines, just enough to reproduce a recognizable human face. In 1928 Baird's company (Baird Television Development Company / Cinema Television) broadcast the first transatlantic television signal, between London and New York, and the first shore to ship transmission. He also demonstrated an electromechanical colour, infrared (dubbed "Noctovision"), and stereoscopic television, using additional lenses, disks and filters. In parallel he developed a video disk recording system dubbed "Phonovision"; a number of the Phonovision[http://www.tvdawn.com/tvimage.htm] recordings, dating back to 1927, still exist. In 1929 he became involved in the first experimental electromechanical television service in Germany. In 1931 he made the first live transmission, of the Epsom Derby. In 1932 he demonstrated ultra-short wave television. Baird's electromechanical system reached a peak of 240 lines of resolution on BBC television broadcasts in 1936, before being discontinued in favor of a 405 line all-electronic system. In the U.S., Charles Francis Jenkins was able to demonstrate on June 13, 1925, the transmission of the silhouette image of a toy windmill in motion from a naval radio station to his laboratory in Washington, using a lensed disc scanner with 48 lines per picture, 16 pictures per second. AT&T's Bell Telephone Laboratories transmitted half-tone images of transparencies in May 1925. But Bell Labs gave the most dramatic demonstration of television yet on April 7, 1927, when it field tested reflected-light television systems using small-scale (2 by 2.5 inches) and large-scale (24 by 30 inches) viewing screens over a wire link from Washington to New York City, and over-the-air broadcast from Whippany, New Jersey. The subjects, which included Secretary of Commerce Herbert Hoover, were illuminated by a flying spot beam and scanned by a 50-aperture disc at 16 pictures per second.

Electronic television

Herbert Hoover Although the discoveries of Nipkow, Rosing, Baird and others were extraordinary, little of their technology is used in modern television. By 1934, all electromechanical television systems were outmoded, although electromechanical broadcasts continued on some stations until 1939. A.A. Campbell-Swinton wrote a letter to Nature on the 18 June 1908 describing his concept of electronic television using the cathode ray tube, which had been invented in 1897 by the German physicist and Nobel prize winner Karl Ferdinand Braun. He proposed using an electron beam in both the camera and the receiver, which could be steered electronically to produce moving pictures. He lectured on the subject in 1911 and displayed circuit diagrams, but no one, including Swinton, knew how to realize the design. Although his system was never built, the cathode ray tube did come to be used to display images in almost all television sets and computer monitors until the invention of the LCD panel. A fully electronic system was first achieved by Philo Taylor Farnsworth on September 7, 1927, although the low-resolution, light-insensitive camera tube limited the image to a plate of glass painted black, with a straight line etched across it, rotated in front of a bright carbon arc lamp. Seven years later, on August 25, 1934, at the Franklin Institute in Philadelphia, Farnsworth gave the world's first public demonstration of a working, all-electronic television system, with 220 lines per picture, 30 pictures per second. Over a three week period, vaudeville acts, athletic and sports demonstrations, politicians, and hundreds of ordinary citizens were captured on Farnsworth's cameras in the open air and simultaneously shown on his receiving sets. Farnsworth, a Mormon farm boy from Rigby, Idaho, first envisioned his system at age 14. He discussed the idea with his high school chemistry teacher, who could think of no reason why it would not work (Farnsworth would later credit this teacher, Justin Tolman, as providing key insights into his invention). He continued to pursue the idea at Brigham Young Academy (now Brigham Young University). At age 21, he demonstrated a working system at his own laboratory in San Francisco. His breakthrough freed television from reliance on spinning discs and other mechanical parts. All modern picture tube televisions descend directly from his design. Vladimir Kosma Zworykin is also sometimes cited as the father of electronic television because of his invention of the iconoscope in 1923 and his invention of the kinescope in 1929. His design was one of the first to demonstrate a television system with all the features of modern picture tubes. His previous work with Rosing on electromechanical television gave him key insights into how to produce such a system, but his (and RCA's) claim to being its original inventor was largely invalidated by three facts: a) Zworykin's 1923 patent presented an incomplete design, incapable of working in its given form (it was not until 1933 that Zworykin achieved a working implementation), b) the 1923 patent application was not granted until 1938, and not until it had been seriously revised, and c) courts eventually found that RCA was in violation of the television design patented by Philo Taylor Farnsworth, whose lab Zworykin had visited while working on his designs for RCA. The controversy over whether it was first Farnsworth or Zworykin who invented modern television is still hotly debated today. Some of this debate stems from the fact that while Farnsworth appears to have gotten there first as an inventor, RCA brought television sets to market before Farnsworth, and it was RCA employees who first wrote the history of television. Even though Farnsworth eventually won the legal battle over this issue, he was never able to fully capitalize financially on his invention.

Color television

Most television researchers appreciated the value of color image transmission, with an early patent application in Russia in 1889 for a mechanically-scanned color system showing how early the importance of color was realized. John Logie Baird demonstrated the world's first color transmission on July 3, 1928, using scanning discs at the transmitting and receiving ends with three spirals of apertures, each spiral with filters of a different primary color; and three light sources at the receiving end, with a commutator to alternate their illumination. Color television in the United States had a protracted history due to conflicting technical systems vying for approval by the Federal Communications Commission for commercial use. Mechanically scanned color television was demonstrated by Bell Laboratories in June 1929 using three complete systems of photoelectric cells, amplifiers, glow-tubes, and color filters, with a series of mirrors to superimpose the red, green, and blue images into one full color image. In the electronically scanned era, the first color television demonstration was on February 5, 1940, when RCA privately showed to members of the FCC at the RCA plant in Camden, New Jersey, a television receiver producing images in color by a field sequential color system. CBS began non-broadcast color experiments using film as early as August 28, 1940, and live cameras by November 12. The CBS "field sequential" color system was partly mechanical, with a disc made of red, blue, and green filters spinning inside the television camera at 1,200 rpm, and a similar disc spinning in synchronization in front of the cathode ray tube inside the receiver set. RCA's later "dot sequential" color system had no moving parts, using a series of dichroic mirrors to separate and direct red, green, and blue light from the subject through three separate lenses into three scanning tubes, and electronic switching that allowed the tubes to send their signals in rotation, dot by dot. These signals were sorted by a second switching device in the receiver set and sent to red, green, and blue picture tubes, and combined by a second set of dichroic mirrors into a full color image. The first field test (i.e., broadcast) of color television was by NBC (owned by RCA) on February 20, 1941. CBS began daily color field tests on June 1, 1941. These color systems were not compatible with existing black and white television sets, and as no color television sets were available to the public at this time, viewership of the color field tests was limited to RCA and CBS engineers and the invited press. The War Production Board halted the manufacture of television and radio equipment for civilian use from April 1, 1942 to October 1, 1945, limiting any opportunity to introduce color television to the general public. The post-war development of color television was dominated by three systems competing for approval by the FCC as the U.S. color broadcasting standard: CBS's field sequential system, which was incompatible with existing black and white sets without an adaptor; RCA's dot sequential system, which in 1949 became compatible with existing black and white sets; and CTI's system (also incompatible with existing black and white sets), which used three camera lenses, behind which were color filters that produced red, green, and blue images side by side on a single scanning tube, and a receiver set that used lenses in front of the picture tube (which had sectors treated with different phosphorescent compounds to glow in red, green, or blue) to project these three side by side images into one combined picture on the viewing screen. After a series of hearings beginning in September 1949, the FCC found the RCA and CTI systems fraught with technical problems, inaccurate color reproduction, and expensive equipment, and so formally approved the CBS system as the U.S. color broadcasting standard on October 11 1950. An unsuccessful lawsuit by RCA delayed the world's first network color broadcast until June 25 1951, when a musical variety special titled simply Premiere was shown over a network of five east coast CBS affiliates. Viewership was again extremely limited: the program could not be seen on black and white sets, and Variety estimated that only thirty prototype color receivers were available in the New York area. Regular color broadcasts began that same week with the daytime series The World Is Yours and Modern Homemakers. While the CBS color broadcasting schedule gradually expanded to twelve hours per week (but never into prime time), and the color network expanded to eleven affiliates as far west as Chicago, its commercial success was doomed by the lack of color receivers necessary to watch the programs, the refusal of television manufacturers to create adaptor mechanisms for their existing black and white sets, and the unwillingness of advertisers to sponsor broadcasts seen by almost no one. In desperation, CBS bought a television manufacturer, and on September 20, 1951, production began on the first and only CBS color television model. But it was too little, too late. Only 200 sets had been shipped, and only 100 sold, when CBS pulled the plug on its color television system on October 20, 1951, and bought back all the CBS color sets it could to prevent law suits by disappointed customers. Starting before CBS color even got on the air, the U.S. television industry, represented by the National Television System Committee, worked in 1950-1953 to develop a color system that was compatible with existing black and white sets and would pass FCC quality standards, with RCA developing the hardware elements. When CBS testified before Congress in March 1953 that it had no further plans for its own color system, the path was open for the NTSC to submit its petition for FCC approval in July 1953, which was granted in December. The first publicly announced experimental TV broadcast of a program using the NTSC-RCA "compatible color" system was an episode of NBC's Kukla, Fran and Ollie on August 30, 1953. NBC made the first coast-to-coast color broadcast when it covered the Tournament of Roses Parade on January 1 1954, with public demonstrations given across the United States on prototype color receivers. A few days later Admiral brought out the first commercially made color television set using the RCA standards, followed in March by RCA's own model. Television's first prime time network color series was The Marriage, a situation comedy broadcast live by NBC in the summer of 1954. NBC's anthology series Ford Theatre became the first color filmed series that October. NBC was naturally at the forefront of color programming because its parent company RCA manufactured the most successful line of color sets in the 1950s. CBS and ABC, which were not affiliated with set manufacturers, and were not eager to promote their competitor's product, dragged their feet into color, with ABC delaying its first color series (The Flintstones and The Jetsons) until 1962. The Du Mont network, although it did have a television-manufacturing parent company, was in financial decline by 1954 and was dissolved two years later. Thus the relatively small amount of network color programming, combined with the high cost of color television sets, meant that as late as 1964 only 3.1 percent of television households in the U.S. had a color set. NBC provided the catalyst for rapid color expansion by announcing that its prime time schedule for fall 1965 would be almost entirely in color (the exception being I Dream of Jeannie). All three broadcast networks were airing full color prime time schedules by the 1966–67 broadcast season. But the number of color television sets sold in the U.S. did not exceed black and white sales until 1972, which was also the first year that more than fifty percent of television households in the U.S. had a color set. In Mexico, Guillermo González Camarena (1917–1965), invented the early color television transmission system. He received patents for color television systems in 1940 (U.S. Patent 1942 (2296019), 1960 and 1962. The 1942 patent was for a mechanically scanned color filter adapter for an existing monochrome electronic transmission system. In August 31, 1946 he sent his first color transmission from his lab in the offices of The Mexican League of Radio Experiments in Lucerna St. #1, in Mexico City. The video signal was transmitted at a frequency of 115 MHz. and the audio in the 40 metre band. European color television was developed somewhat later and was hindered by a continuing division on technical standards. Having decided to adopt a higher-definition 625-line system for monochrome transmissions, with a lower frame rate but with a higher overall bandwidth, Europeans could not directly adopt the U.S. color standard, which was widely perceived as wanting anyway, because of its tint control problems. There was also less urgency, since there were fewer commercial motivations, European television broadcasters being predominantly state-owned at the time. As a consequence, although work on various color encoding systems started already in the 1950s, with the first SECAM patent being registered in 1956, many years had passed till the first broadcasts actually started in 1967. Unsatisfied with the performance of NTSC and of initial SECAM implementations, the Germans unveiled PAL (phase alternating line) in 1963, staying closer to NTSC but borrowing some ideas from SECAM. The French continued with SECAM, notably involving Russians in the development. The first regular colour broadcasts in Europe were by BBC2 beginning on July 1, 1967, using PAL. Germans did their first broadcast in September (PAL), while the French in October (SECAM). PAL was eventually adopted by West Germany, the UK, Australia, New Zealand, much of Africa, Asia and South America, and most Western European countries except France. In addition to France and Luxembourg, SECAM was adopted by Soviet Union, much of Eastern Europe, much of Africa and of the Middle East. Both systems broadcast on UHF frequencies, the VHF being used for legacy black and white, 405 lines in UK or 819 lines in France, till the beginning of the eighties. It should be noted that some British television programmes, particularly those made by or for ITC Entertainment, were made in colour before the introduction of colour television to the UK, for the purpose of sales to US networks. The first British show to be made in colour was the drama series The Adventures of Sir Lancelot (1956-57), which was initially made in black and white but later shot in colour for sale to the NBC network in the United States. In Japan, NHK introduced color television in the year 1960.

Broadcast television

NHK The first regularly scheduled television service in the United States began on July 2, 1928. The Federal Radio Commission authorized C.F. Jenkins to broadcast from experimental station W3XK in a suburb of Washington, D.C. But for at least the first eighteen months, only silhouette images from motion picture film were broadcast due to the narrow 10kHz bandwidth allotted by the FRC. General Electric's experimental station in Schenectady, New York, on the air sporadically since January 13, 1928, was able to broadcast reflected-light, 48-line images via shortwave as far as Los Angeles, and by September was making four television broadcasts weekly. CBS's New York City station W2XAB began broadcasting the first regular seven days a week television schedule in the United States on July 21, 1931, with a 60-line electromechanical system. The first broadcast included Mayor Jimmy Walker, the Boswell Sisters, Kate Smith, and George Gershwin. The service ended in February 1933. By 1935, electromechanical television broadcasting had ceased in the United States except for a handful of stations run by public universities that continued to 1939. The Federal Communications Commission saw television in the continual flux of development with no consistent technical standards, hence all such stations in the U.S. were granted only experimental and not commercial licenses, hampering television's economic development. Just as importantly, Philo Farnsworth's 1934 demonstration of an all-electronic system pointed the direction of television's future. On June 15, 1936, Don Lee Broadcasting began a month-long demonstration of all-electronic television in Los Angeles on W6XAO (later KTSL) with a 300-line image from motion picture film. RCA demonstrated in New York City a 343-line electronic television broadcast, with live and film segments, to its licensees on July 7, 1936, and made its first public demonstration to the press on November 6. By April 1939, regularly scheduled 441-line electronic television broadcasts were available in New York City and Los Angeles, and by November on General Electric's station in Schenectady. With the adoption of NTSC television engineering standards in 1941, the FCC saw television ready for commercial licensing, with the first such licenses issued to NBC and CBS owned stations in New York on July 1, 1941, followed by Philco's station in Philadelphia. Electromechanical broadcasts began in Germany in 1929, but were without sound until 1934. Network electronic service started on March 22, 1935, on 180 lines using only telecine transmission of film or an intermediate film system. Live transmissions began on January 15, 1936. The Berlin Summer Olympic Games were televised, using both direct television and intermediate film cameras, to 28 public television rooms in Berlin and Hamburg in August 1936. The Germans had a 441-line system on the air in February 1937, and during World War II brought it to France, where they broadcast off the Eiffel Tower. The first British television broadcast was made by Baird Television's electromechanical system over the BBC radio transmitter in September 1929. Baird provided a limited amount of programming five days a week by 1930. On August 22, 1932, BBC launched its own regular service using Baird's 30-line electromechanical system, continuing until September 11, 1935. On November 2, 1936 the BBC began broadcasting a dual-system service, alternating on a weekly basis between Marconi-EMI's 405-line standard and Baird's improved 240-line standard, from Alexandra Palace in London, making the BBC the world's first regular high-definition television service. The corporation decided that Marconi-EMI's electronic picture gave the superior picture, and the Baird system was dropped in February 1937. The outbreak of the Second World War caused the BBC service to be suspended on September 1, 1939, resuming from Alexandra Palace on June 7, 1946. The Soviet Union began offering 30-line electromechanical test broadcasts in Moscow on October 31, 1931, and a commercially manufactured television set in 1932. The first experimental transmissions of electronic television took place in Moscow on March 9, 1937, using equipment manufactured and installed by RCA. Regular broadcasting began on December 31, 1938. The first regular television transmissions in Canada began in 1952 when the CBC put two stations on the air, one in Montreal, Quebec on September 6, and another in Toronto, Ontario two days later. two days later The first live transcontinental television broadcast took place in San Francisco, California from the Japanese Peace Treaty Conference on September 4, 1951. In 1958, the CBC completed the longest television network in the world, from Sydney, Nova Scotia to Victoria, British Columbia. Reportedly, the first continuous live broadcast of a breaking news story in the world was conducted by the CBC during the Springhill Mining Disaster which began on October 23 of that year. Programming is broadcast on television stations (sometimes called channels). At first, terrestrial broadcasting was the only way television could be distributed. Because bandwidth was limited, government regulation was normal. In the U.S., the Federal Communications Commission allowed stations to broadcast advertisements, but insisted on public service programming commitments as a requirement for a license. By contrast, the United Kingdom chose a different route, imposing a television licence fee on owners of television reception equipment, to fund the BBC, which had public service as part of its Royal Charter. Development of cable and satellite means of distribution in the 1970s pushed businessmen to target channels towards a certain audience, and enabled the rise of subscription-based television channels, such as HBO and Sky. Practically every country in the world now has developed at least one television channel. Television has grown up all over the world, enabling every country to share aspects of their culture and society with others. By the late 1980s, 98% of all homes in the U.S. had at least one TV set. On average, Americans watch four hours of television per day. An estimated two-thirds of Americans got most of their news about the world from TV, and nearly half got all of their news from TV. These figures are now estimated to be significantly higher.

Technology

Broadcasting

There are many means of distributing television broadcasts, including both analogue and digital versions of:
- Terrestrial television
- Stratovision (From aircraft flying in a loop)
- Satellite television
- Cable television
- MMDS (Wireless cable)

Receiving

Television sets

In television's electromechanical era, commercially made television sets were sold from 1928 to 1934 in the United Kingdom, United States, and Russia. The earliest commercially made sets sold by Baird in the U.K. and the U.S. in 1928 were radios with the addition of a television device consisting of a neon tube behind a mechanically spinning disk (the Nipkow disk) with a spiral of apertures that produced a red postage-stamp size image, enlarged to twice that size by a magnifying glass. The "televisor" was also available without the radio. The Baird televisor sold in 1930-1933 is considered the first mass-produced set, selling about a thousand units. The first commercially made electronic television sets with cathode ray tubes were manufactured by Telefunken in Germany in 1934, followed by other makers in Britain (1936) and America (1938). The cheapest of the pre-War World II factory-made American sets, a 1938 image-only model with a 3-inch (8 cm) screen, cost US$125, the equivalent of US$1,732 in 2005. The cheapest model with a 12-inch (30 cm) screen was $445 ($6,256). An estimated 19,000 electronic television sets 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, which resumed in October 1945. Television usage in the United States skyrocketed after World War II with the lifting of the manufacturing freeze, war-related technological advances, the gradual expansion of the television networks westward, the drop in set prices caused by mass production, increased leisure time, and additional disposable income. While only 0.5% of U.S. households had a television set 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, and 15.1 million by 1968. For many years different countries used different technical standards. France initially adopted the German 441-line standard but later upgraded to 819 lines, which gave the highest picture definition of any analogue TV system, approximately four times the resolution of the British 405-line system. Eventually the whole of Europe switched to the 625-line PAL standard, once more following Germany's example. Meanwhile in North America the original NTSC 525-line standard from 1941 was retained. NTSC Television in its original form involves sending images and sound over radio waves in the VHF and UHF bands, which are received by a television set. Over-the-air broadcast television requires an antenna (aerial). This can be an outdoor Yagi antenna. In strong signal areas the antenna can be indoors, attached to or near the receiver, such as an adjustable dipole antenna called "rabbit ears" for the VHF band and a small loop antenna for the UHF band.

Specifications

Modern displays

Starting in the 1990s, modern television sets diverged into three different trends:
- standalone TV sets;
- integrated systems with DVD players and/or VHS VCR capabilities built into the TV set itself (mostly for small size TVs with up to 21" screen, the main idea is to have a complete portable system);
- component systems with separate big-screen video monitor, tuner, audio system which the owner connects the pieces together as a high-end home theater system. This approach appeals to videophiles who prefer components that can be upgraded separately. There are many kinds of video monitors used in modern TV sets. The most common are direct view CRTs for up to 40in (100cm) (in 4:3) and 46in (115cm) (in 16:9) diagonally; most big screen TVs (up to over 100 inch (254 cm)) use projection technology. Three types of projection systems are used in projection TVs: CRT-based, LCD-based, and DLP(reflective micromirror chip)-based. Modern advances have brought flat panels to TV that use active matrix LCD or plasma display technology. Flat panel LCDs and plasma displays are as little as 4in (10cm) thick and can be hung on a wall like a picture or put over a pedestal. They are multifunctional, because they are used like computer monitors too (VGA and DVI or HDMI connections). Some TVs integrate a pair of ports to connect computer cases and peripherals to it or to connect the set to an A/V home network (HAVI) (USB port for cord connection and BlueTooth/WiFi for wireless). Today, some LCD and Plasma sets have SD Card slots, so users can view pictures from a digital camera. On the new Panasonic LCDs and Plasmas (Viera), users have the capability to record onto SD card and then play it back on a hand-held PC or digital camera (anything that allows MPEG4). With SD cards now available with 1G of memory (soon 2GB, and Panasonic is also working on one that contains over 30GB of memory), a user can record over 1,000 minutes at low quality, and around 80 minutes on the highest quality. The playback of the recording is not brilliant, but these are the first generation. They will get better with time.

Signal connections

The number of ways to connect a video device to a television has increased over the years: WiFi
- HDMI - a compact 19 to 29 pin connector that carries digital video and digital audio signals. Essentially an enhanced version of DVI that includes digital audio. This is the most advanced form of connection currently available. DVI
- DVI - a 17 to 29 pin connector that carries digital video signals, designed to carry HDTV but also used in current DVD players and latest digital displays. Copy protection is available using HDCP. HDCP
- Component video - three separate RCA jacks (colored red, green and blue) carry three video signals, one brightness (luminance) and two colors (chromas), and is usually referred to as "Y, B-Y, R-Y", "Y Cr Cb" (interlaced) or "Y Pr Pb" (progressive), or YUV. Audio is not carried on this cable. This connection provides for picture quality superior to S-Video and is typically used in home theater for DVDs, satellite and analogue HDTV; less common in Europe but is starting to become more widely available. Europe
- SCART - a large 21 pin connector that may carry: one video signal composite video; or two video signals S-Video; or for picture quality similar to component video, three signals of separate red, green and blue or RGB; or for best picture quality, four video signals of separate red, green, blue and sync or RGBS; plus right and left line-level audio channels; along with a number of control signals including an aspect-ratio flag (e.g. widescreen). This system has been standard in Europe since mid-1980s for all consumer electronics, which meant that RGBS was available on even the earliest PAL DVD players and satellite receivers. Japan uses a 21 pin RGB connector which is visually similar to SCART but with different pin configurations. Japan
- S-Video - small round connector with two separate video signals, one carrying brightness (luminance), the other carrying color (chroma). Also referred to as Y/C video. Provides most of the benefit of component video, with slightly less color fidelity. Use started in the 1980s for S-VHS, Hi-8, and early NTSC DVD players to relay high quality video before component was available. Audio is not carried on this cable. Hi-8
- Composite video - The most common form of connecting external devices, putting all the video information into one signal. Most televisions provide this option with a yellow RCA jack. Audio is not carried on this cable, though two separate cables with similar red and white RCA jacks for right and left line-level audio are commonly bonded to composite video cables.
- Coaxial RF - All audio channels and picture components are transmitted through one coaxial cable and modulated on a radio frequency. Most TVs manufactured during the past 15–20 years accept coaxial connection, and the video is typically "tuned" on channel 3 or 4. This is the type of cable usually used for cable television. Most modern DVD players and other video devices no longer modulate RF output, so very old TV sets made before composite video jacks became commonplace will need a modulator.

Aspect ratios

Mechanically scanned television as first demonstrated by John Logie Baird in 1926 used a 7:3 vertical aspect ratio, oriented for the head and shoulders of a single person in close-up. Most of the early electronic TV systems from the mid-1930s onward shared the same aspect ratio of 4:3 which was chosen to match the Academy Ratio used in cinema films at the time. This ratio was also square enough to be conveniently viewed on round cathode-ray tubes (CRTs), which were all that could be produced given the manufacturing technology of the time. (Today's CRT technology allows the manufacture of much wider tubes, and the flat screen technologies which are becoming steadily more popular have no aspect ratio limitations at all.) The BBC's television service used a more squarish [http://tcc.members.beeb.net/tchistory.html 5:4] ratio from 1936 to circa 1949, when it too switched to a 4:3 ratio. In the 1950s, movie studios moved towards widescreen aspect ratios such as Cinerama in an effort to distance their product from television. Although this was initially just a gimmick widescreen is still the format of choice today and square aspect ratio movies are rare. Some people argued that widescreen is actually a disadvantage when showing objects that are tall instead of panoramic, others would say that natural vision is more panoramic than tall, and therefore widescreen is easier on the eye. The switch to digital television systems has been used as an opportunity to change the standard television picture format from the old ratio of 4:3 (approximately 1.33:1) to an aspect ratio of 16:9 (approximately 1.78:1). This enables TV to get closer to the aspect ratio of modern widescreen movies, which range from 1.78:1 through 1.85:1 to 2.35:1. There are two methods for transporting widescreen content, the better of which uses what is called anamorphic widescreen format. This format is very similar to the technique used to fit a widescreen movie frame inside a 1.33:1 35mm film frame. The image is squashed horizontally when recorded, then expanded again when played back. The anamorphic widescreen 16:9 format was first introduced via European PAL-Plus television broadcasts and then later on "widescreen" DVDs; the ATSC HDTV system uses straight widescreen format, no image squashing or expanding is used. Recently "widescreen" has spread from television to computing where both desktop and laptop computers are commonly equipped with widescreen displays, and it remains to be seen whether Work or movie enjoyment will take over. There are some complaints about distortions of movie picture ratio due to some DVD playback software not taking account of aspect ratios; but this will subside as the DVD playback software matures. Furthermore, computer and laptop widescreen displays are in the 16:10 aspect ratio both physically in size and in pixel counts, and not in 16:9 of consumer televisions, leading to further complexity. This was a result of widescreen computer display engineers' uninformed assumption that people viewing 16:9 content on their computer would prefer that an area of the screen be reserved for playback controls or subtitles, as opposed to viewing content full-screen.

Aspect ratio incompatibility

The television industry changing aspect ratios is not without teething difficulties, and can present a considerable problem. Displaying a widescreen aspect (rectangular) image on a conventional aspect (square) display can be shown:
- in "letterbox" format, with black horizontal bars at the top and bottom
- with part of the image being cropped, usually the extreme left and right of the image being cut off (or in "pan and scan", parts selected by an operator)
- with the image horizontally compressed A conventional aspect (square) image on a widescreen aspect (rectangular) display can be shown:
- in "pillarbox" format, with black vertical bars to the left and right
- with upper and lower portions of the image cut off
- with the image horizontally distorted A common compromise is to shoot or create material at an aspect ratio of 14:9, and to lose some image at each side for 4:3 presentation, and some image at top and bottom for 16:9 presentation. Horizontal expansion has advantages in situations in which several people are watching the same set, as it compensates for watching at an oblique angle.

Sound

Television add-ons

Today there are many add-ons for the television set. A few add-ons include Video Game Consoles, VCRs, Cable Boxes, Satellite Boxes, DVD players, or Digital Video Recorders, the television add-on market is ever growing.

New developments

- Broadcast flag
- CableCARD™
- Digital Light Processing (DLP)
- Digital Rights Management (DRM)
- Digital television (DTV)
- Digital Video Recorders
- Direct Broadcast Satellite TV (DBS)
- DVD
- Flicker-free (100Hz)
- High Definition TV (HDTV)
- High-Definition Multimedia Interface (HDMI)
- IPTV
- Internet television
- LCD and Plasma display Flat Screen TV
- Pay Per View
- Picture-in-picture (PiP)
- Video on-demand (VOD)
- Ultra High Definition Video (UHDV)
- Web TV

Geographical usage

Content

Advertising

Since their inception in the USA in 1941, TV commercials have become one of the most effective, most pervasive, and most popular methods of selling products of many sorts, especially consumer goods. U.S. advertising rates are determined primarily by Nielsen ratings. The exception to this is the publicly-funded British Broadcasting Corporation.

Programming

Getting TV programming shown to the public can happen in many different ways. After production the next step is to market and deliver the product to whatever markets are open to using it. This typically happens on two levels: #Original Run or First Run - a producer creates a program of one or multiple episodes and shows it on a station or network which has either paid for the production itself or to which a license has been granted by the producers to do the same. #Syndication - this is the terminology rather broadly used to describe secondary programming usages (beyond original run). It includes secondary runs in the country of first issue, but also international usage which may or may not be managed by the originating producer. In many cases other companies, TV stations or individuals are engaged to do the syndication work, in other words to sell the product into the markets they are allowed to sell into by contract from the copyright holders, in most cases the producers. In most countries, the first wave occurs primarily on FTA television, while the second wave happens on subscription TV and in other countries. In the U.S. however, the first wave occurs on the FTA networks and subscription services, and the second wave travels via all means of distribution. First run programming is increasing on subscription services outside the U.S., but few domestically produced programs are syndicated on domestic FTA elsewhere. This practice is increasing however, generally on digital only FTA channels, or with subscriber-only first run material appearing on FTA. Unlike the U.S., repeat FTA screenings of a FTA network program almost only occur only on that network. Also, affiliates rarely buy or produce non-network programming that isn't intensely local.

Social aspects

Alleged dangers

Paralleling television's growing primacy in family life and society, an increasingly vocal chorus of legislators, scientists and parents are raising objections to the uncritical acceptance of the medium. For example, the Swedish government imposed a total ban on advertising to children under twelve in 1991 (see advertising). In the U.S., the [http://www.mediafamily.org/facts/facts_tveffect.shtml National Institute on Media and the Family] (not a government agency) points out that U.S. children watch an average of 25 hours of television per week and features studies showing it interferes with the educational and maturational process. A February 23 2002 article in [http://www.sciam.com/print_version.cfm?articleID=0005339B-A694-1CC5-B4A8809EC588EEDF Scientific American] suggested that compulsive television watching was no different from any other addiction, a finding backed up by reports of withdrawal symptoms among families forced by

North Dakota

North Dakota is a U.S. state, the northernmost of the Great Plains states in the Midwestern United States. To the north across the U.S.-Canada border are the Canadian provinces of Saskatchewan and Manitoba, and to the south is South Dakota. In the west is Montana and to the east across the Red River of the North and the Bois de Sioux River is Minnesota. The Missouri River flows through the western part of the state, forming Lake Sakakawea behind the Garrison Dam. Formerly part of Dakota Territory (named after the Dakota tribe of Native Americans), North Dakota became a state in 1889. North Dakota's postal abbreviation is ND. The entire state is covered by area code 701. The United States Navy vessels USS North Dakota and Flickertail State were named in honor of North Dakota.

History

Prior to European contact, Native Americans inhabited North Dakota for thousands of years. The first European to reach the area was the French-Canadian trader La Vérendrye, who led an exploration party to Mandan villages about 1738. The trading arrangement between tribes was such that North Dakota tribes rarely dealt directly with Europeans. However, the native tribes were in sufficient contact that by the time of Lewis and Clark, they were at least somewhat aware of the French, then Spanish claims to their territory. The state was settled sparsely until the late 1800s, when the railroads pushed through the state, and aggressively marketed the land. On 2 November 1889, North Dakota was admitted to the Union with South Dakota (see Trivia below). The territorial and early state governments were largely corrupt. Early in the 20th century, a wave of populism led by the Non Partisan League brought social reforms. The Great Depression was rough on the state and came several years early with the 1920s farm crisis. The original state capitol burned to the ground in the 1930s and was replaced by a concrete art deco skyscraper that still stands today. The 1950s brought a round of federal construction projects, including the Garrison Dam and the Minot and Grand Forks Air Force bases. The 1980s saw an oil boom in the Williston basin, as skyrocketing petroleum prices made development profitable, driving state population to a peak near 800,000. Since then the state has been experiencing a period of economic and demographic decline. Today, the population stands at around 640,000 (roughly the same population as in the 1920s).

Law and government

The capital of North Dakota is Bismarck and its current governor is John Hoeven (Republican). Its two current U.S. senators are Kent Conrad (Dem-NPL) and Byron Dorgan (Dem-NPL). Its congressman is Earl Pomeroy (Dem-NPL). North Dakota has a bicameral legislature. The state elects two House Representatives and one Senator from each of 47 districts apportioned by population. The legislature meets in an 80-day regular session in odd-numbered years, and in special session if summoned by the governor. See also: North Dakota Legislative Assembly, North Dakota Senate, North Dakota House of Representatives The major political parties in North Dakota are the Republican Party and the Democratic-NPL Party. However, North Dakota does have some active third parties. The Republican Party holds large majorities in the state legislature and generally wins the state's 3-member electoral college delegation. Since 1964, no Democratic presidential candidate has carried North Dakota. In 2004, George W. Bush won with 62.9% of the vote. On the other hand, Dem-NPL candidates for North Dakota's federal Senate and Congressional seats have won every election since 1986. The structure of North Dakota's judiciary is not terribly complex. Each of the 53 counties has a court, from which appeals are sent directly to the North Dakota Supreme Court. Because of the expense of having each county hire a judge, and the fairly low workload, the state is divided into seven judicial districts which collectively elect judges to travel to the various courthouses and hear cases. District Judges are elected to six-year terms. Supreme Court Judges are elected to ten-year terms. The Supreme Court Justice is selected every 5 years by vote of the District and Supreme Court Judges. See: List of North Dakota Governors, List of United States Senators from North Dakota, List_of_political_parties_in_North_Dakota.

Geography and Climate

List_of_political_parties_in_North_Dakota See: List of North Dakota counties North Dakota is bordered on the north by the Canadian Provinces of Saskatchewan and Manitoba, on the west by Montana, on the south by South Dakota, and on the east, across the Red River of the North and the Bois de Sioux River, by Minnesota. The Missouri River flows through the western part of the state, forming Lake Sakakawea behind the Garrison Dam. Farms and ranches stretch across the rolling plains from the Red River Valley in the east to the rugged Badlands in the west. The geographic center of the North American continent is located near Rugby. North Dakota is a prime example of a continental climate; distant from major bodies of water to moderate the weather, conditions range from sweltering heat and humidity to bitter cold. Competing warm airmasses from the Gulf of Mexico and cold airmasses from the Arctic regions invaribly produce strong winds as they move in and out of the region. In summer, the clash of arctic and tropic systems often leads to strong thunderstorms, sometimes including damaging hail and tornadoes. In winter, the weather tends to be more stable — cold and dry, with occasional flurries—though the constant wind tends to create blowing snow at any time of the season. Severe snowstorms tend to manifest late in the fall or early in the spring, as was the case in 1997. North Dakota's reputation for severe weather has been cited by many as a motivating factor behind outmigration and the failure of outside industry to locate in the state, though some have found this to be a secondary factor to the overall economic situation in the state.

Economy

The U.S. Bureau of Economic Analysis estimates that North Dakota's total state product in 2003 was $21 billion. Per capita personal income in 2003 was $28,922, 32^nd in the nation. Agricultural activity is largely dependent on rainfall. Wheat (particularly the durum variety used for pasta), barley, canola, soybeans, sunflowers, and flax are present throughout the state. The wetter Red River Valley is dominated by farms, with the chief crops being Sugar beets and maize. Cattle ranches are more common in the dry southwest, though dairy ranches are more common toward the east. Honey is produced in the central part of the state. Small quantities of juneberries and grapes support a modest domestic winery industry. The state's relatively small industrial output includes electric power, food processing, machinery (including Bobcat heavy equipment), lignite mining, and tourism. North Dakota has the only state-owned bank in the United States, the Bank of North Dakota. The bank, by law, holds all funds of all state and local government agencies in North Dakota. Its deposits are not guaranteed by the FDIC, but by the State of North Dakota itself.

Demographics

According to the U.S. Census Bureau, as of 2004, North Dakota's population was 634,366. The state's population had declined nearly 8,000 since 2000, a 1.2% drop. North Dakota ranks 47th of the 50 states in population, with fewer people only in Alaska, Vermont, and Wyoming.

Race and Ancestry

The racial makeup of the state:
- 91.7% White
- 4.9% Native American
- 1.2% Hispanic
- 0.6% Asian
- 0.6% Black
- 1.2% Mixed race The five largest ancestry groups in North Dakota are: German (43.9%), Norwegian (30.1%), Irish (7.7%), Native American (5%), Swedish (5%). Most North Dakotans are of Northern European descent, especially Scandinavian and German. People of German ancestry are present throughout the state, especially the southern and central counties, and Scandinavians are also present throughout. A few counties have large Native American populations (principally on reservations). Individual counties in western North Dakota have the largest white, Russian, Ukrainian, and Hungarian percentages of any county. 6.1% of North Dakota's population were reported as under 5, 25% under 18, and 14.7% were 65 or older. Females made up approximately 50.1% of the population.

Outmigration

North Dakota has experienced a decline in population over the last 20 years, primarily among skilled college graduates for whom there are few jobs in the state. State leaders have been at a loss to address the issue. Student loan forgiveness programs for health and education professionals have been initiated with some degree of success, but a larger program to forgive the loans of all college graduates residing in the state for a given period of time failed to pass a referendum. Some federal politicians, including Byron Dorgan, have proposed [http://dorgan.senate.gov/issues/northdakota/homestead/ "The New Homestead Act of 2005"] (compare to the original U.S. Homestead Act in 1862) to encourage living in areas losing population through incentives such as tax breaks, but these have also made little headway. Many North Dakota politicians believe that better economic development programs will eventually resolve the issue, but opinions are mixed as to what exactly that would entail.

Religion

A very large majority of North Dakotans self-identify as Christian. It has the lowest percentage of non-religious people of any state, and it also has the most churches per capita of any state. An estimate of the religious affiliations of the people of North Dakota (source: [http://www.gc.cuny.edu/faculty/research_briefs/aris/key_findings.htm] CUNY, 2001):
- Lutheran: 35%
- Catholic: 30%
- Methodist: 7%
- Baptist: 6%
- Assemblies of God: 3%
- None: 3%
- Christian: 2%
- Muslim: 2%
- Protestant: 1%
- Mormon/LDS: 1%
- Jehovah's Witnesses: 1%
- Buddhist: 1%
- Other: 1%
- Refused: 6%

Important cities and towns

See also: List of cities in North Dakota By population, the ten largest urban centers in the state are: :1. Fargo/West Fargo :2. Bismarck/Mandan :3. Grand Forks :4. Minot :5. Dickinson :6. Jamestown :7. Williston :8. Wahpeton :9. Devils Lake :10. Valley City The population trends in the state are noting a distinct shift from the rural areas to the larger cities. Most of North Dakota's largest communities grew between 1990 and 2000. Between 1990 and 2000, the USA as a whole grew by 13.1%, yet North Dakota grew a mere 0.5%. It is the only state (along with Washington DC) whose population declined (by 1.3%) between April 1, 2000 and July 1, 2003; this decline has become a major political issue.

Education

North Dakota's leaders frequently boast that the educational scene in the state is excellent. However, because the economic situation is no match for it, many skilled graduates leave the state.

Colleges and universities

The state has 11 public colleges and universities, five tribal community colleges, and four private schools. The largest and oldest among them is the University of North Dakota in Grand Forks. The higher education system consists of the following institutions: :North Dakota University System (Public schools) ::Bismarck State College in Bismarck ::Dickinson State University in Dickinson ::Lake Region State College in Devils Lake ::Mayville State University in Mayville ::Minot State University in Minot ::Minot State University-Bottineau in Bottineau ::North Dakota State University in Fargo ::North Dakota State College of Science in Wahpeton ::University of North Dakota in Grand Forks ::Valley City State University in Valley City ::Williston State College in Williston :Tribal colleges ::Cankdeska Cikana Community College in Fort Totten ::Fort Berthold Community College in New Town ::Sitting Bull College in Fort Yates ::Turtle Mountain Community College in Belcourt ::United Tribes Technical College in Bismarck :Private schools ::Aakers College in Fargo and Bismarck ::Jamestown College in Jamestown ::University of Mary in Bismarck ::Trinity Bible College in Ellendale

Miscellaneous information

:Language: English :Counties: 53 :State bird: Western Meadowlark, Sturnella neglecta :State fish: Northern pike, Esox lucius :State horse: Nokota Horse :State flower: Wild Prairie Rose, Rosa arkansana :State tree: American Elm, Ulmus americana :State fossil: Teredo Petrified wood :State grass: Western Wheatgrass, Pascopyrum smithii (Rydb.) A. Löve :State nicknames: Roughrider State, Flickertail State, Peace Garden State :State mottos: ::(Seal of North Dakota) Liberty and Union, Now and Forever, One and Inseparable ::(Coat of Arms of North Dakota) Strength from the Soil :State song: North Dakota Hymn :State dance: Square Dance :State march: Flickertail March :State beverage: Milk :State license plate: See the different types over time [http://www.worldlicenceplates.com/usa/US_NDXX.html]

Trivia

A bill for statehood for North and South Dakota (and Montana, and Washington) was passed on February 22 1889 during the Administration of Grover Cleveland. It was left to his successor Benjamin Harrison to sign proclamations formally admitting North and South Dakota to the Union on November 2 1889. However, the rivalry between the northern and southern territories presented a dilemma: only one, upon the President's signature on the proclamation, could gain the distinction of being admitted before the other. So Harrison directed his Secretary of State James Blaine to shuffle the papers and obscure from him which he was signing first, and the priority went unrecorded. The Flickertail State is one of North Dakota's nicknames. The nickname is derived from Richardson's Ground Squirrel (Spermophilus richardsonii), a very common animal in the region. The squirrel constantly flicks its tail in a distinctive manner. In 1953, legislation to make the squirrel the state animal was voted down in the state legislature.

External links

- [http://www.nd.gov State of North Dakota official website]
- [http://www.nd.gov North Dakota tourism website]
- [http://quickfacts.census.gov/qfd/states/38000.html U.S. Census Bureau facts of North Dakota]
- [http://www.dannyburk.com/badlands%20national%20park.htm Pictures of the Dakotas: Badlands and Theodore Roosevelt National Parks] Category:States of the American West
- Category:States of the United States ko:노스다코타 주 ja:ノースダコタ州 simple:North Dakota

KVLY-TV mast

The KVLY-TV mast (formerly the KTHI-TV mast) is a television transmitting tower in North Dakota, USA, used by Fargo station KVLY channel 11. At 2,063 ft (628.8 m), it is currently the tallest man-made structure in the world.

Overview

The tower is located three miles west of Blanchard, North Dakota (at ), which is roughly halfway between Fargo and Grand Forks. It became the tallest artificial structure upon the completion of its construction on August 13, 1963. The mast was surpassed in height by 18 m (57 ft) in 1974 by the Warszawa radio mast near Konstantynow, Poland, but that collapsed on August 8 1991, making the KVLY mast again the tallest. When built, the UAE's Burj Dubai, presently slated for completion in 2008, might surpass the mast as the tallest land structure. The tower was built by Hamilton Directors and Kline Iron and Steel, and took thirty days to complete, at a cost of a US$500,000 ($3.2 million in 2005 dollars). Owned by the Meyer Broadcasting Company (now North Dakota Television, LLC) of Bismarck, the tower broadcasts at 316 kW for television station KVLY (channel 11, an NBC affiliate) which is based in Fargo. The tower provides a broadcast area of roughly 30,000 square miles (78,000 km²). Its overall height above mean sea level is 926 m (3,038 ft). Some time after its completion, the Federal Aviation Administration imposed a limit of 2,063 ft, based on this tower's height, on future construction; consequently, no taller structures may legally be built in the U.S. at present. The call letters of the television station for which it was built were originally KTHI, the "HI" referring to the height of the mast. The top is reachable by service elevator or ladder.

Images

Image:KVLYDistance.jpg|KVLY mast from a distance of about one mile Image:KVLYBase.jpeg|Base of the tower Image:KVLYPylon.jpeg|A supporting pylon

Structures of similar height

- KXJB Tower (2060 ft - 627.8 m)
- KXTV/KOVR Tower (2049 ft - 624.5 m)

External links

- http://www.structurae.net/structures/data/index.cfm?ID=s0000675
- [http://www.kvlytv11.com/info_tower.html Tower web page at KVLY-TV]
- [http://wireless2.fcc.gov/UlsApp/AsrSearch/asrRegistration.jsp?regKey=608746 FCC listing]
- [http://www.skyscraperpage.com/cities/?buildingID=471 Listing on the Skyscraper Page]
- http://www.skyscraperpage.com/diagrams/?b471
- http://www.pbase.com/talshiarr/kvly
- [http://www.terraserver-usa.com/GetImageArea.ashx?t=1&s=10&lon=-97.288889&lat=47.342222&w=600&h=400&b=2&bc=ff000000&g=2&gc=80ff0000&f=&fs=12&fc=ffffffff&logo=1&lp=--- Satellite image of the KVLY-TV tower] Category:Guyed masts Category:North Dakota landmarks Category:Buildings and structures in North Dakota Category:North Dakota media

United States

:For alternative meanings, see the disambiguation page for US, USA, United States, or American. The United States of America is a federal democratic republic situated primarily in central North America. It comprises 50 states and one federal district, and has several territories. It is also referred to, with varying formality, as the United States, the U.S., the U.S.A., the States, or simply and most commonly, America. The official founding date of the United States is July 4, 1776, when the Second Continental Congress—representing thirteen British colonies—adopted the Declaration of Independence. However, the structure of the government was profoundly changed in 1788, when the states replaced the Articles of Confederation with the United States Constitution. The date on which each of the fifty states adopted the Constitution is typically regarded as the date that state "entered the Union" (became part of the United States). Since the mid-20th century, following World War II, the United States has emerged as a dominant global influence in economic, political, military, scientific, technological, and cultural affairs.

Geography and climate

The United States shares land borders with Canada (to the north) and Mexico (to the south), and territorial water boundaries with Canada, Russia, the Bahamas, and numerous smaller nations. It is otherwise bounded by the Pacific Ocean and the Bering Sea, in the west; the Arctic Ocean, in the northernmost areas; and the Atlantic Ocean, the Gulf of Mexico, and the Caribbean Sea, in the eastern and southeastern areas. Forty-eight of the states are in the single region between Canada and Mexico; this group is referred to, with varying precision and formality, as the continental or contiguous United States, sometimes abbreviated CONUS, and as the Lower 48. Alaska, which is not included in the term contiguous United States, is at the northwestern end of North America, separated from the Lower 48 by Canada. The archipelago of Hawaii is in the Pacific Ocean. The capital city, Washington, District of Columbia is a federal district located on land donated by the state of Maryland. (Virginia also donated land, but it was returned in 1847.) The United States also has overseas territories with varying levels of independence and organization. When inland water is included in the total area, only Russia and Canada are larger than the United States; if inland water is excluded, China ranks third and the U.S. ranks fourth. The United States' total area is 3,718,711 square miles (9,631,418 km²), of which land makes up 3,537,438 square miles (9,161,923 km²) and water makes up 181,273 square miles (469,495 km²). The United States' landscape is one of the most varied among those of the world's nations: among its many features are temperate forestland and rolling hills, on the east coast; mangrove, in Florida; the Great Plains, in the center of the country; the Mississippi–Missouri river system; the Great Lakes, four of the five of which are shared with Canada; the Rocky Mountains, west of the Great Plains; deserts and temperate coastal zones, west of the Rocky Mountains; and temperate rain forests, in the Pacific northwest. Alaska's tundra, and the volcanic, tropical islands of Hawaii add to the geographic diversity. Hawaii The climate varies along with the landscape, from tropical in Hawaii and southern Florida to tundra in Alaska and atop some of the highest mountains. Most of the North and East experience a temperate continental climate, with warm summers and cold winters. Most of the South experiences a subtropical humid climate with mild winters and long, hot, humid summers. Rainfall decreases markedly from the humid forests of the Eastern Great Plains to the semi-arid shortgrass prairies on the high plains abutting the Rocky Mountains. Arid deserts, including the Mojave, extend through the lowlands and valleys of the southwest, from westernmost Texas to California and northward throughout much of