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Panchromatic Film
A panchromatic emulsion is a type of photographic emulsion that is sensitive to all wavelengths of visible light, and produces a monochrome photograph—typically black and white. Most modern commercially available film is panchromatic, and the technology is usually contrasted with earlier methods that cannot register all wavelengths, especially orthochromatic film. In digital imaging, a panchromatic sensor is an image sensor or array of sensors that combine the visible spectrum with non-visible wavelengths, such as ultraviolet or infrared. Images produced are also black and white, and the system is used for its ability to produce higher resolution images than standard digital sensors. Description A panchromatic emulsion renders a realistic reproduction of a scene as it appears to the human eye, although with no colors. Almost all modern photographic film is panchromatic. Some older types of film were orthochromatic and were not sensitive to certain wavelengths of light. A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Photographic Emulsion
Photographic emulsion is a light-sensitive colloid used in film-based photography. Most commonly, in silver-gelatin photography, it consists of silver halide crystals dispersed in gelatin. The emulsion is usually coated onto a substrate of glass, films (of cellulose nitrate, cellulose acetate or polyester), paper, or fabric. The substrate is often flexible and known as a film base. Photographic emulsion is not a true emulsion, but a suspension of solid particles (silver halide) in a fluid (gelatin in solution). However, the word ''emulsion'' is customarily used in a photographic context. Gelatin or gum arabic layers sensitized with dichromate used in the dichromated colloid processes carbon and gum bichromate are sometimes called ''emulsions''. Some processes do not have emulsions, such as platinum, cyanotype, salted paper, or kallitype. Components Photographic emulsion is a fine suspension of insoluble light-sensitive crystals in a colloid sol, usually consisting of g ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Derivative (chemistry)
In chemistry, a derivative is a compound that is derived from a similar compound by a chemical reaction. In the past, derivative also meant a compound that ''can be imagined to'' arise from another compound, if one atom or group of atoms is replaced with another atom or group of atoms, but modern chemical language now uses the term structural analog for this meaning, thus eliminating ambiguity. The term "structural analogue" is common in organic chemistry. In biochemistry, the word is used for compounds that at least theoretically can be formed from the precursor compound. Chemical derivatives may be used to facilitate analysis. For example, melting point (MP) analysis can assist in identification of many organic compounds. A crystalline derivative may be prepared, such as a semicarbazone or 2,4-dinitrophenylhydrazone (derived from aldehydes or ketones), as a simple way of verifying the identity of the original compound, assuming that a table of derivative MP values is avai ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cartosat
The Cartosat is a series of Indian optical Earth observation satellites built and operated by the Indian Space Research Organisation (ISRO). The Cartosat series is a part of the Indian Remote Sensing Program. They are used for Earth's resource management, defence services and monitoring. History The Department of Space (DoS) had launched and managed the IRS series of remote sensing satellites for Earth's resource management and monitoring. These satellites were very successful in providing data in various scales ranging from 1:1 Million to 1:12,500 scale. Each of the IRS missions ensured data continuity while introducing improvements in the spatial, spectral and radiometric resolutions. Considering increased demand for large scale and topographic mapping data, the DoS launched the expanded Cartosat series of remote sensing satellites. The first satellite of the series, Cartosat-1, was launched in 2005. Satellites Cartosat-1 Cartosat-1 was launched by PSLV-C6 on 5 May ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Earth
Earth is the third planet from the Sun and the only astronomical object known to Planetary habitability, harbor life. This is enabled by Earth being an ocean world, the only one in the Solar System sustaining liquid surface water. Almost all of Earth's water is contained in its global ocean, covering Water distribution on Earth, 70.8% of Earth's crust. The remaining 29.2% of Earth's crust is land, most of which is located in the form of continental landmasses within Earth's land hemisphere. Most of Earth's land is at least somewhat humid and covered by vegetation, while large Ice sheet, sheets of ice at Polar regions of Earth, Earth's polar polar desert, deserts retain more water than Earth's groundwater, lakes, rivers, and Water vapor#In Earth's atmosphere, atmospheric water combined. Earth's crust consists of slowly moving tectonic plates, which interact to produce mountain ranges, volcanoes, and earthquakes. Earth's outer core, Earth has a liquid outer core that generates a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Headless Horseman (1922 Film)
''The Headless Horseman'' is a 1922 American silent film adaptation of Washington Irving's 1820 short story " The Legend of Sleepy Hollow" directed by Edward D. Venturini. It stars Will Rogers, Lois Meredith (in her last major on-screen appearance) and Ben Hendricks Jr. It was the first panchromatic black-and-white feature film. There were three silent film adaptations of the story, but this 1922 version is the longest of the three, as well as the only one that survives today. Film critic Christopher Workman states: "The obvious day-for-night shooting foreshadows the work of Edward D. Wood Jr. he filmis a motion picture that wavers between irritating and flat-out dull." He says the Headless Horseman only appears in two all-too-brief sequences in the film, once at the beginning and again in the finale. Plot The village of Sleepy Hollow, New York is getting ready to greet the new schoolteacher, Ichabod Crane, who is coming from New York. Crane has already heard of the village ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Feature Film
A feature film or feature-length film (often abbreviated to feature), also called a theatrical film, is a film (Film, motion picture, "movie" or simply “picture”) with a running time long enough to be considered the principal or sole presentation in a commercial entertainment theatrical program. The term ''feature film'' originally referred to the main, full-length film in a cinema program that included a short film and often a newsreel. Matinee programs, especially in the United States and Canada, in general, also included cartoons, at least one weekly serial film, serial and, typically, a second feature-length film on weekends. The first narrative feature film was the 70-minute ''The Story of the Kelly Gang'' (1906). Other early feature films include ''Les Misérables (1909 film), Les Misérables'' (1909), ''L'Inferno'', ''Defence of Sevastopol, The Adventures of Pinocchio (1911 film), The Adventures of Pinocchio'' (1911), ''Oliver Twist (1912 American film), Oliver Twist'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Gulf Between (1917 Film)
''The Gulf Between'' is a 1917 American comedy-drama film that was the first motion picture made in Technicolor, the fourth feature-length color film, and the first feature-length color film produced in the United States. A copy of the film was destroyed in a fire on March 25, 1961 and the film is considered a lost film, with only very short fragments known to survive. These fragments are in the collections of the Margaret Herrick Library, George Eastman House Motion Picture Collection, and the Smithsonian National Museum of American History Photographic History Collection. ''The Gulf Between'', which had a running time of approximately 58 minutes, was directed by Wray Physioc. The lead roles were played by Grace Darmond and Niles Welch. Plot As described in the film magazine '' Exhibitors Herald'', little Marie Farrell (Axzelle), through the carelessness of her nurse, is lost and believed drowned. She has wandered upon the ship of the smuggler Captain Flagg (Brandt), who fi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The World, The Flesh And The Devil (1914 Film)
''The World, the Flesh and the Devil'' is a 1914 British silent drama film. Now considered a lost film, it was made using the additive color Kinemacolor process. The title comes from the Litany in the 1662 ''Book of Common Prayer'': "From all the deceits of the world, the flesh, and the devil, spare us, good Lord." Plot A very miserable woman hatches a plot to switch the babies of a poor family and a rich family. But the nurse hired to pull off this transfer refuses to go through with it, leaving each baby with its proper family. When the babies are grown, the man from the poor family (who has been led to believe that he did come from the rich family) goes to the house of the other and throws him out. The remainder of the film deals with the frustrations of mistaken identity. Cast * Frank Esmond – Nicholas Brophy * Stella St. Audrie – Caroline Stanger * Warwick Wellington – Sir James Hall * Charles Carter – Rupert Stanger / Dyke * Rupert Harvey – Robert Hall * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eastman Kodak
The Eastman Kodak Company, referred to simply as Kodak (), is an American public company that produces various products related to its historic basis in film photography. The company is headquartered in Rochester, New York, and is incorporated in New Jersey. It is best known for photographic film products, which it brought to a mass market for the first time. Kodak began as a partnership between George Eastman and Henry A. Strong to develop a film roll camera. After the release of the Kodak camera, Eastman Kodak was incorporated on May 23, 1892. Under Eastman's direction, the company became one of the world's largest film and camera manufacturers, and also developed a model of welfare capitalism and a close relationship with the city of Rochester. During most of the 20th century, Kodak held a dominant position in photographic film, and produced a number of technological innovations through heavy investment in research and development at Kodak Research Laboratories. Kodak produc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Prizma
The Prizma Color system was a color motion picture process, invented in 1913 by William Van Doren Kelley and Charles Raleigh. Initially, it was a two-color additive color system, similar to its predecessor, Kinemacolor. However, Kelley eventually transformed Prizma into a bi-pack color system that itself became the predecessor for future color processes such as Multicolor and Cinecolor. Experimental Prizma gave a demonstration of color motion pictures in 1917 that used an additive four-color process, using a disk of four filters acting on a single strip of panchromatic film in the camera. The colors were red, yellow, green, and blue, with overlapping wavelengths to prevent pulsating effects on the screen with vivid colors. The film was photographed at 26 to 32 frames per second, and projected at 32 frame/s. The disk used in projection consisted mainly of two colors, red-orange and blue-green, adapted to the four-color process by the superimposition of two small magenta filters ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kinemacolor
Kinemacolor was the first successful colour motion picture process. Used commercially from 1909 to 1915, it was invented by George Albert Smith in 1906. It was a two-colour additive colour process, photographing a black-and-white film behind alternating red/orange and blue/green filters and projecting them through red and green filters. It was demonstrated several times in 1908 and first shown to the public in 1909. From 1909 on, the process was known and trademarked as Kinemacolor and was marketed by Charles Urban's Natural Color Kinematograph Company, which sold Kinemacolor licences around the world. Process Edward Raymond Turner produced the oldest surviving colour films around 1902. They were made through three-colour alternating-filters. Turner's process, for which Charles Urban had provided financial backing, was adapted by George Albert Smith after Turner's sudden death in 1903 into Kinemacolor. Smith was also influenced by the work of William Norman Lascelles D ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
