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Holonovel
The Holodeck is a fictional device from the television franchise ''Star Trek'' which uses "holograms" (projected light and electromagnetic energy which create the illusion of solid objects) to create a realistic 3D simulation of a real or imaginary setting, in which participants can freely interact with the environment as well as objects and characters, and sometimes a predefined narrative. In several series, holodecks are an amenity available to the crew of starships. In the series ''Star Trek: Deep Space Nine'', a similar device is referred to as a holosuite, operated by the owner of the space station's bar, Quark, who rents them out to customers. From a storytelling point of view, the holodeck permits the introduction of a wide variety of locations and characters, such as events and persons in the Earth's past, or imaginary places or beings, that would otherwise require the use of plot mechanisms such as time-travel or dream sequences. Writers often use it as a way to pose ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
USS Enterprise (NCC-1701-D)
USS ''Enterprise'' (NCC-1701-D), or ''Enterprise''-D, is a starship in the ''Star Trek'' media franchise. Under the command of Captain Jean-Luc Picard, it is the main setting of '' Star Trek: The Next Generation'' (1987–1994) and the film ''Star Trek Generations'' (1994). It has also been depicted in various spinoffs, films, books, and licensed products. ''The Next Generation'' occurs in the 24th century, 78 years after the adventures of Captain James T. Kirk and the starship ''Enterprise''. Andrew Probert's ''Enterprise''-D updates Matt Jefferies' iconic 1960s ''Enterprise'' design, depicting a ship supporting a larger crew on a longer mission "to boldly go where no one has gone before." Development and production Concept Paramount Television Group and ''Star Trek'' creator Gene Roddenberry announced the development of a new ''Star Trek'' series in October 1986. Because the ''Enterprise'' had been "just as important to he original ''Star Trek''as Kirk, Spock, and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Writing
Writing is a medium of human communication which involves the representation of a language through a system of physically Epigraphy, inscribed, Printing press, mechanically transferred, or Word processor, digitally represented Symbols (semiotics), symbols. Writing systems do not themselves constitute human languages (with the debatable exception of computer languages); they are a means of rendering language into a form that can be reconstructed by other humans separated by time and/or space. While not all languages use a writing system, those that do can complement and extend capacities of spoken language by creating durable forms of language that can be transmitted across space (e.g. Letter (message), written correspondence) and stored over time (e.g. libraries or other public records). It has also been observed that the activity of writing itself can have knowledge-transforming effects, since it allows humans to externalize their thinking in forms that are easier to reflect ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Star Trek Generations
''Star Trek Generations'' is a 1994 American science fiction film and the seventh film in the ''Star Trek'' film series. Malcolm McDowell joins cast members from the 1960s television show ''Star Trek'' and the 1987 sequel series ''The Next Generation'', including William Shatner and Patrick Stewart. In the film, Captain Jean-Luc Picard of the USS ''Enterprise''-D joins forces with Captain James T. Kirk to stop the villain Tolian Soran from destroying a planetary system in his attempt to return to an extra-dimensional realm known as the Nexus. ''Generations'' was conceived as a handoff from the original cast of the ''Star Trek'' films to the cast of ''The Next Generation''. After developing several film ideas concurrently, the producers chose a script written by Ronald D. Moore and Brannon Braga. Production began while the final season of the television series was being made. The director was David Carson, who previously directed episodes of the television series; photogr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of Michigan
, mottoeng = "Arts, Knowledge, Truth" , former_names = Catholepistemiad, or University of Michigania (1817–1821) , budget = $10.3 billion (2021) , endowment = $17 billion (2021)As of October 25, 2021. , president = Santa Ono , provost = Laurie McCauley , established = , type = Public research university , academic_affiliations = , students = 48,090 (2021) , undergrad = 31,329 (2021) , postgrad = 16,578 (2021) , administrative_staff = 18,986 (2014) , faculty = 6,771 (2014) , city = Ann Arbor , state = Michigan , country = United States , coor = , campus = Midsize City, Total: , including arboretum , colors = Maize & Blue , nickname = Wolverines , sporti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Juris Upatnieks
Juris Upatnieks (born 7 May 1936 in Riga) is a Latvian-American physicist and inventor, and pioneer in the field of holography. Upatnieks fled the Latvia with his parents at the close of World War II, seeking asylum in Germany. In 1951 the family emigrated to the United States. He attended high school in Akron, Ohio, and studied electrical engineering at the University of Akron, where he was awarded a bachelor's degree in 1960. Thereafter he studied at the Institute of Science and Technology of the University of Michigan, where he earned a master's degree in electrical engineering in 1965. From 1973 to 1993 he worked at the Environmental Research Institute of Michigan and was an Adjunct Professor, Electrical and Computer Engineering Department at University of Michigan in Ann Arbor. There he taught a laboratory course in optics until 1996. From 1993 to 2001 he was a consultant with Applied Optics in Ann Arbor. From 1996 to 2001 he was also a researcher with the faculty of Mec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Emmett Leith
Emmett Norman Leith (March 12, 1927 in Detroit, Michigan – December 23, 2005 in Ann Arbor, Michigan) was a professor of electrical engineering at the University of Michigan and, with Juris Upatnieks of the University of Michigan, the co-inventor of three-dimensional holography. Leith received his B.S. in physics from Wayne State University in 1949 and his M.S. in physics in 1952. He received his Ph.D. in electrical engineering from Wayne State in 1978. Much of Leith's holographic work was an outgrowth of his research on synthetic aperture radar (SAR) performed while a member of the Radar Laboratory of the University of Michigan's Willow Run Laboratory beginning in 1952. Leith joined the University of Michigan as a research assistant and was promoted to graduate research assistant in 1955, research associate in 1956, research engineer in 1960, associate professor in 1965, and full professor in 1968. Professor Leith and his coworker Juris Upatnieks at the University of Mic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yuri Denisyuk
Yuri Nikolayevich Denisyuk (Russian: Юрий Денисюҝ; July 27, 1927 in Sochi — May 14, 2006 in Saint Petersburg) was a Russian physicist and one of the founders of optical holography in the former Soviet Union. He is known for his great contribution to holography, in particular for the so-called "Denisyuk hologram". He was a full member of the Russian Academy of Sciences (1992; corresponding member since 1970), doctor of physical and mathematical sciences (1971, candidate of sciences since 1964), professor (1980). Biography Yuri Denisyuk spent his youth in Leningrad and was in the city during the Siege of Leningrad. His scientific work started in 1954 (after his graduation from Saint Petersburg National Research University of Information Technologies, Mechanics and Optics) at Vavilov State Optical Institute. At that time he was inspired by the science fiction novel '' Stellar Ships'' by the Soviet writer and paleontologist Ivan Yefremov (where it was written about a three ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Laser
A laser is a device that emits light through a process of optical amplification based on the stimulated emission of electromagnetic radiation. The word "laser" is an acronym for "light amplification by stimulated emission of radiation". The first laser was built in 1960 by Theodore H. Maiman at Hughes Research Laboratories, based on theoretical work by Charles Hard Townes and Arthur Leonard Schawlow. A laser differs from other sources of light in that it emits light which is ''coherent''. Spatial coherence allows a laser to be focused to a tight spot, enabling applications such as laser cutting and lithography. Spatial coherence also allows a laser beam to stay narrow over great distances (collimation), enabling applications such as laser pointers and lidar (light detection and ranging). Lasers can also have high temporal coherence, which allows them to emit light with a very narrow spectrum. Alternatively, temporal coherence can be used to produce ultrashort pulses of ligh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electron Holography
Electron holography is holography with electron waves. Dennis Gabor invented holography in 1948 when he tried to improve resolution in electron microscope. The first attempts to perform holography with electron waves were made by Haine and Mulvey in 1952; they recorded holograms of zinc oxide crystals with 60 keV electrons, demonstrating reconstructions with approximately 1 nm resolution. In 1955, G. Möllenstedt and H. Düker invented an electron biprism. thus enabling the recording of electron holograms in off-axis scheme. There are many different possible configurations for electron holography, with more than 20 documented in 1992 by Cowley. Usually, high spatial and temporal coherence (i.e. a low energy spread) of the electron beam are required to perform holographic measurements. High-energy electron holography in off-axis scheme Electron holography with high-energy electrons (80-200 keV) can be realized in a transmission electron microscope (TEM) in an off-axi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electron Microscope
An electron microscope is a microscope that uses a beam of accelerated electrons as a source of illumination. As the wavelength of an electron can be up to 100,000 times shorter than that of visible light photons, electron microscopes have a higher resolving power than light microscopes and can reveal the structure of smaller objects. A scanning transmission electron microscope has achieved better than 50 pm resolution in annular dark-field imaging mode and magnifications of up to about 10,000,000× whereas most light microscopes are limited by diffraction to about 200 nm resolution and useful magnifications below 2000×. Electron microscopes use shaped magnetic fields to form electron optical lens systems that are analogous to the glass lenses of an optical light microscope. Electron microscopes are used to investigate the ultrastructure of a wide range of biological and inorganic specimens including microorganisms, cells, large molecules, biopsy samples, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nobel Prize In Physics
) , image = Nobel Prize.png , alt = A golden medallion with an embossed image of a bearded man facing left in profile. To the left of the man is the text "ALFR•" then "NOBEL", and on the right, the text (smaller) "NAT•" then "MDCCCXXXIII" above, followed by (smaller) "OB•" then "MDCCCXCVI" below. , awarded_for = Outstanding contributions for humankind in the field of Physics , presenter = Royal Swedish Academy of Sciences , location = Stockholm, Sweden , date = , reward = 9 million Swedish kronor (2017) , year = 1901 , holder_label = Most recently awarded to , holder = Alain Aspect, John Clauser, and Anton Zeilinger , most_awards = John Bardeen (2) , website nobelprize.org, previous = 2021 , year2=2022, main=2022, next=2023 The Nobel Prize in Physics is a yearly award given by the Royal Swedish Academy of Sciences for those who have made the most outstanding contributions for humankind in the field of physics. It ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dennis Gabor
Dennis Gabor ( ; hu, Gábor Dénes, ; 5 June 1900 – 9 February 1979) was a Hungarian-British electrical engineer and physicist, most notable for inventing holography, for which he later received the 1971 Nobel Prize in Physics. He obtained British citizenship in 1934, and spent most of his life in England. Life and career Gabor was born as Günszberg Dénes, into a Jewish family in Budapest, Hungary. In 1918, his family converted to Lutheranism. Dennis was the first-born son of Günszberg Bernát and Jakobovits Adél. Despite having a religious background, religion played a minor role in his later life and he considered himself agnostic. In 1902, the family received permission to change their surname from Günszberg to Gábor. He served with the Hungarian artillery in northern Italy during World War I. He began his studies in engineering at the Technical University of Budapest in 1918, later in Germany, at the Charlottenburg Technical University in Berlin, now known as t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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