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Holodeck
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] |
The Practical Joker
"The Practical Joker" is the third episode of the second season of the American animated science fiction television series ''Star Trek'', the 19th episode overall. It first aired in the NBC Saturday morning lineup on September 21, 1974, and was written by American television writers Chuck Menville and Len JansonThis story was expanded into a novelette by science-fiction author Alan Dean Foster as part of the collection Star Trek Log Six' (1976) (). who together also wrote the first season episode "Once Upon a Planet". The "Rec Room" in this episode is the forerunner of the Holodeck, which plays a significant part in numerous episodes of the subsequent spin-off ''Star Trek'' series. Set in the 23rd century, the series follows the adventures of Captain James T. Kirk (voiced by William Shatner) and the crew of the Starfleet starship ''Enterprise''. In this episode, after the ''Enterprise'' passes through an unusual cloud the ship's computer starts playing practical jokes on th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Star Trek
''Star Trek'' is an American science fiction media franchise created by Gene Roddenberry, which began with the eponymous 1960s television series and quickly became a worldwide pop-culture phenomenon. The franchise has expanded into various films, television series, video games, novels, and comic books. With an estimated $10.6 billion in revenue, it is one of the most recognizable and highest-grossing media franchises of all time. The franchise began with ''Star Trek: The Original Series'', which debuted in the US on September 8, 1966 and aired for three seasons on NBC. It was first broadcast on September 6, 1966 on Canada's CTV network. It followed the voyages of the crew of the starship USS ''Enterprise'', a space exploration vessel built by the United Federation of Planets in the 23rd century, on a mission "to explore strange new worlds, to seek out new life and new civilizations, to boldly go where no man has gone before". In creating ''Star Trek'', Roddenberry w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Veldt (short Story)
"The Veldt" is a science fiction short story by American author Ray Bradbury. Originally appearing as "The World the Children Made" in the September 23, 1950, issue of ''The Saturday Evening Post'', it was republished under its current name in the 1951 anthology ''The Illustrated Man''. In the story, a mother and father struggle with their technologically advanced home taking over their role as parents, and their children becoming uncooperative as a result of their lack of discipline. Plot The Hadley family lives in an automated house called "the Happylife Home,” filled with machines that aid them in completing everyday tasks, such as tying their shoes, bathing them, or cooking their food. The two children, Peter and Wendy, enjoy time in the "nursery", a virtual reality room able to realistically reproduce any place they imagine, and grow increasingly attached to it. The parents, George and Lydia, begin to wonder if there is something wrong with their way of life. Lydia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Big Goodbye
"The Big Goodbye" is the twelfth episode of the American science fiction television series '' Star Trek: The Next Generation''. The episode first aired in broadcast syndication on January 11, 1988. This was the second writing credit of the series for Tracy Tormé following the episode " Haven". Rob Bowman planned to direct the episode, but he was switched to "Datalore" due to delays in its production. With Bowman working on another episode, Joseph L. Scanlan became the director. Set in the 24th century, the series follows the adventures of the Starfleet crew of the Federation starship Enterprise-D. In this episode, the crew is sent to open diplomatic ties with the Jarada. While taking a break from preparations, Captain Jean-Luc Picard (Patrick Stewart), Lt. Cmdr. Data (Brent Spiner), and Dr. Beverly Crusher (Gates McFadden) are trapped, due to a computer malfunction, in a 1940s-style gangster holodeck program with Captain Picard playing the role of detective Dixon Hill. "T ... [...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] |
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] |
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] |
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] |
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] |
Magyars
Hungarians, also known as Magyars ( ; hu, magyarok ), are a nation and ethnic group native to Hungary () and historical Hungarian lands who share a common culture, history, ancestry, and language. The Hungarian language belongs to the Uralic language family. There are an estimated 15 million ethnic Hungarians and their descendants worldwide, of whom 9.6 million live in today's Hungary. About 2–3 million Hungarians live in areas that were part of the Kingdom of Hungary before the Treaty of Trianon in 1920 and are now parts of Hungary's seven neighbouring countries, Slovakia, Ukraine, Romania, Serbia, Croatia, Slovenia, and Austria. Significant groups of people with Hungarian ancestry live in various other parts of the world, most of them in the United States, Canada, Germany, France, the United Kingdom, Chile, Brazil, Australia, and Argentina. Hungarians can be divided into several subgroups according to local linguistic and cultural characteristics; subgroups with distinct ... [...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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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