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W2XBS
WNBC (channel 4) is a television station in New York City that serves as the flagship of the NBC network. It is owned and operated by the network's NBC Owned Television Stations division alongside Linden, New Jersey–licensed Telemundo station WNJU (channel 47). WNBC's studios and offices are co-located with NBC's corporate headquarters at 30 Rockefeller Plaza in Midtown Manhattan; WNJU's facilities in Fort Lee, New Jersey, also serve as WNBC's New Jersey news bureau. Through a channel sharing agreement with WNJU, the two stations transmit using WNJU's spectrum from an antenna atop One World Trade Center. WNBC holds the distinction of being the oldest continuously operating commercial television station in the United States. History Experimental operations What is now WNBC traces its history to experimental station W2XBS, founded by the Radio Corporation of America (RCA, a co-founder of the National Broadcasting Company), in 1928, just two years after NBC was founded as the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
History Of Television
The concept of television is the work of many individuals in the late 19th and early 20th centuries. Constantin Perskyi had coined the word ''television'' in a paper read to the International Electricity Congress at the Exposition Universelle (1900), World's Fair in Paris on August 24, 1900. The first practical transmissions of moving images over a radio system used mechanical rotating perforated disks to scan a scene into a time-varying signal that could be reconstructed at a receiver back into an approximation of the original image. Development of television was interrupted by the Second World War. After the end of the war, all-electronic methods of scanning and displaying images became standard. Several different standards for addition of color to transmitted images were developed with different regions using technically incompatible signal standards. Television broadcasting expanded rapidly after World War II, becoming an important mass medium for advertising, propagand ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Radio Corporation Of America
RCA Corporation was a major American electronics company, which was founded in 1919 as the Radio Corporation of America. It was initially a patent pool, patent trust owned by General Electric (GE), Westinghouse Electric Corporation, Westinghouse, AT&T Corporation and United Fruit Company. In 1932, RCA became an independent company after the partners were required to divest their ownership as part of the settlement of a government United States antitrust law, antitrust suit. An innovative and progressive company, RCA was the dominant electronics and communications firm in the United States for over five decades. In the early 1920s, RCA was at the forefront of the mushrooming radio industry as a major manufacturer of radio receivers, and the exclusive manufacturer of the first superheterodyne sets. The company also created the first nationwide American radio network, the National Broadcasting Company (NBC). RCA was also a pioneer in the introduction and development of television, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Channel 1 (NTSC-M)
In North American broadcast television frequencies, channel 1 was a former broadcast ( over-the-air) television channel which was removed from service in 1948. During the experimental era of TV operation, Channel 1 was moved around the lower VHF spectrum repeatedly, with the entire band displaced upward at one point due to an early 40 MHz allocation for the FM broadcast band. After FM was moved to its current frequencies in 1946, TV Channel 1's last assigned band was 44 to 50 MHz. This allocation was short-lived. Until 1948, Land Mobile Radio and television broadcasters shared the same frequencies, which caused interference. This shared allocation was eventually found to be unworkable, so the FCC reallocated the Channel 1 frequencies for public safety and land mobile use and assigned TV channels 2–13 exclusively to broadcasters. Aside from the shared frequency issue, this part of the VHF band was (and to some extent still is) prone to higher levels of radio-frequ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
WRGB
WRGB (channel 6) is a television station licensed to Schenectady, New York, United States, serving the Capital District as an affiliate of CBS. It is owned by Sinclair Broadcast Group alongside CW affiliate WCWN (channel 45). The two stations share studios on Balltown Road in Niskayuna, New York; WRGB's transmitter is located on the Helderberg Escarpment west of New Salem. WRGB is notable for being one of the first television stations in the world. It began broadcasting experimentally in early 1928, with the first daily programs being broadcast later that year. It later became one of a handful of television stations licensed for commercial broadcasting operation before the end of World War II, being the fourth overall to sign on and by far the smallest TV station during World War II. The station launched the on-camera careers of TV chefs Art "Mr. Food" Ginsburg in the mid-1970s; and of Rachael Ray, who launched her " 30 Minute Meals" segment on WRGB's newscasts in the m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
New York, New York
New York, often called New York City (NYC), is the List of United States cities by population, most populous city in the United States, located at the southern tip of New York State on New York Harbor, one of the world's largest natural harbors. The city comprises boroughs of New York City, five boroughs, each coextensive with List of counties in New York, a respective county. The city is the geographical and demographic center of both the Northeast megalopolis and the New York metropolitan area, the largest metropolitan area in the United States by both population and urban area. New York is a global city, global center of financial center, finance and Economy of New York City, commerce, Culture of New York City, culture, high technology, technology, The Entertainment Capital of the World, entertainment and Media in New York City, media, Academy, academics, and List of cities by scientific output, scientific output, the The arts, arts and fashion capital, fashion, and, as hom ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Commercial Television
Commercial broadcasting (also called private broadcasting) is the broadcasting of television programs and radio programming by privately owned corporate media, as opposed to state sponsorship, for example. It was the United States' first model of radio (and later television) during the 1920s, in contrast with the public television model during the 1930s, 1940s, and 1950s, which prevailed worldwide, except in the United States, Mexico, and Brazil, until the 1980s. Features Advertising Commercial broadcasting is primarily based on the practice of airing radio advertisements and television advertisements for profit. This is in contrast to public broadcasting, which receives government subsidies and usually does not have paid advertising interrupting the show. During pledge drives, some public broadcasters will interrupt shows to ask for donations. In the United States, non-commercial educational (NCE) television and radio exist in the form of community radio; however, premium ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cathode-ray Tube
A cathode-ray tube (CRT) is a vacuum tube containing one or more electron guns, which emit electron beams that are manipulated to display images on a phosphorescent screen. The images may represent electrical waveforms on an oscilloscope, a Film frame, frame of video on an Analog television, analog television set (TV), Digital imaging, digital raster graphics on a computer monitor, or other phenomena like radar targets. A CRT in a TV is commonly called a picture tube. CRTs have also been Williams tube, used as memory devices, in which case the screen is not intended to be visible to an observer. The term ''cathode ray'' was used to describe electron beams when they were first discovered, before it was understood that what was emitted from the cathode was a beam of electrons. In CRT TVs and computer monitors, the entire front area of the tube is scanned repeatedly and systematically in a fixed pattern called a raster scan, raster. In color devices, an image is produced by con ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phonograph
A phonograph, later called a gramophone, and since the 1940s a record player, or more recently a turntable, is a device for the mechanical and analogue reproduction of sound. The sound vibration Waveform, waveforms are recorded as corresponding physical deviations of a helical or spiral groove engraved, etched, incised, or impressed into the surface of a rotating cylinder or disc, called a ''Phonograph record, record''. To recreate the sound, the surface is similarly rotated while a playback #Stylus, stylus traces the groove and is therefore vibrated by it, faintly reproducing the recorded sound. In early acoustic phonographs, the stylus vibrated a Diaphragm (acoustics), diaphragm that produced sound waves coupled to the open air through a flaring Horn loudspeaker, horn, or directly to the listener's ears through stethoscope-type earphones. The phonograph was invented in 1877 by Thomas Edison; its use would rise the following year. Alexander Graham Bell's Volta Laboratory an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bakelite
Bakelite ( ), formally , is a thermosetting polymer, thermosetting phenol formaldehyde resin, formed from a condensation reaction of phenol with formaldehyde. The first plastic made from synthetic components, it was developed by Belgian chemist Leo Baekeland in Yonkers, New York, in 1907, and patented on December 7, 1909. Bakelite was one of the first plastic-like materials to be introduced into the modern world and was popular because it could be Molding (process), molded and then hardened into any shape. Because of its electrical nonconductor, nonconductivity and heat-resistant properties, it became a great commercial success. It was used in electrical insulators, radio and telephone casings, and such diverse products as kitchenware, jewelry, pipe stems, children's toys, and firearms. The retro appeal of old Bakelite products has made them collectible. The creation of a synthetic plastic was revolutionary for the chemical industry, which at the time made most of its income f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Papier-mâché
file:JacmelMardiGras.jpg, upright=1.3, Mardi Gras papier-mâché masks, Haiti Papier-mâché ( , , - the French term "mâché" here means "crushed and ground") is a versatile craft technique with roots in ancient China, in which waste paper is shredded and mixed with water and a binder to produce a pulp ideal for modelling or moulding, which dries to a hard surface and allows the creation of light, strong and inexpensive objects of any shape, even very complicated ones. There are various recipes, including those using cardboard and some mineral elements such as chalk or clay (carton-pierre, a building material). Papier-mâché reinforced with textiles or boiled cardboard (carton bouilli) can be used for durable, sturdy objects. There is even carton-cuir (cardboard and leather) There is also a "laminating process", a method in which strips of paper are glued together in layers. Binding agents include glue, starch or wallpaper paste. "Carton-paille" or strawboard was already describ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Felix The Cat
Felix the Cat is a cartoon character created in 1919 by Otto Messmer and Pat Sullivan (film producer), Pat Sullivan during the silent film era. An anthropomorphism, anthropomorphic young black cat with white eyes, a black body, and a giant grin, he is often considered one of the most recognized cartoon characters in history. Felix was the first fully realized recurring animal character in the history of American film animation. Felix originated from the studio of Australian cartoonist-film industry, film entrepreneur Pat Sullivan (film producer), Pat Sullivan. Either Sullivan himself or his lead animator, American Otto Messmer, created the character. What is certain is that Felix emerged from Sullivan's studio, and cartoons featuring the character became well known in popular culture. Aside from the animated shorts, Felix starred in a comic strip (drawn by Sullivan, Messmer and later Joe Oriolo) beginning in 1923, and his image soon adorned merchandise such as ceramics, toys, and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hertz
The hertz (symbol: Hz) is the unit of frequency in the International System of Units (SI), often described as being equivalent to one event (or Cycle per second, cycle) per second. The hertz is an SI derived unit whose formal expression in terms of SI base units is 1/s or s−1, meaning that one hertz is one per second or the Inverse second, reciprocal of one second. It is used only in the case of periodic events. It is named after Heinrich Hertz, Heinrich Rudolf Hertz (1857–1894), the first person to provide conclusive proof of the existence of electromagnetic waves. For high frequencies, the unit is commonly expressed in metric prefix, multiples: kilohertz (kHz), megahertz (MHz), gigahertz (GHz), terahertz (THz). Some of the unit's most common uses are in the description of periodic waveforms and musical tones, particularly those used in radio- and audio-related applications. It is also used to describe the clock speeds at which computers and other electronics are driven. T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
