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Ansible
An ansible is a category of fictional devices or technology capable of near-instantaneous or faster-than-light communication. It can send and receive messages to and from a corresponding device over any distance or obstacle whatsoever with no delay, even between star systems. As a name for such a device, the word "ansible" first appeared in a 1966 novel by Ursula K. Le Guin. Since that time, the term has been broadly used in the works of numerous science fiction authors, across a variety of settings and continuities. A related term is ultrawave. Coinage by Ursula Le Guin Ursula K. Le Guin coined the word "ansible" in her 1966 novel ''Rocannon's World''. The word was a contraction of "answerable", as the device would allow its users to receive answers to their messages in a reasonable amount of time, even over interstellar distances. The plot device of the ansible was the basis for creating a specific kind of interstellar civilizationone where communications between far-flu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Faster-than-light Communication
Superluminal communication is a hypothetical process in which information is sent at faster-than-light (FTL) speeds. The current scientific consensus is that faster-than-light communication is not possible, and to date it has not been achieved in any experiment. Superluminal communication other than possibly through wormholes is likely impossible because, in a Lorentz-invariant theory, it could be used to transmit information into the past. This complicates causality, but no theoretical arguments conclusively preclude this possibility. A number of theories and phenomena related to superluminal communication have been proposed or studied, including tachyons, neutrinos, quantum nonlocality, wormholes, and quantum tunneling. Proposed mechanisms Tachyons Tachyonic particles are hypothetical particles that travel faster than light. These would allow superluminal communication, and for this reason are widely believed not to exist. By contrast, tachyonic fields quantum fields with ima ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Dispossessed
''The Dispossessed'' (in later printings titled ''The Dispossessed: An Ambiguous Utopia'') is a 1974 anarchist utopian science fiction novel by American writer Ursula K. Le Guin, one of her seven Hainish Cycle novels. It is one of a small number of books to win the Hugo, Locus and Nebula Awards for Best Novel. It achieved a degree of literary recognition unusual for science fiction due to its exploration of themes such as anarchism (on a satellite planet called Anarres) and revolutionary societies, capitalism, utopia, and individualism and collectivism. It features the development of the mathematical theory underlying a fictional ''ansible'', a device capable of faster-than-light communication (it can send messages without delay, even between star systems) that plays a critical role in the Hainish Cycle. The invention of the ansible places the novel first in the internal chronology of the Hainish Cycle, although it was the fifth published. Background In her introduction to the L ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Advent Rising
''Advent Rising'' is an action-adventure third-person shooter video game developed by GlyphX Games and published by Majesco Entertainment. The game was released on May 31, 2005, for Xbox and on August 9, 2005, for Microsoft Windows. Its story was created by Donald and Geremy Mustard and featured a script written by science fiction writers Orson Scott Card and Cameron Dayton; the full orchestral soundtrack was done by Tommy Tallarico and Emmanuel Fratianni. As of September 14, 2006, Steam began offering ''Advent Rising'' for download. Much-hyped ''Advent Rising'' was the first in a planned trilogy which also saw the development of a game that would take place alongside ''Advent Rising'', called ''Advent Shadow'' for the PSP. Despite a large advertising campaign including promotion in cinemas, the game's retail performance fell far short of expectations. By the end of 2005, Majesco had completely revised its business plan to focus towards handheld games and canceled plans for fu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ender's Game (film)
''Ender's Game'' is a 2013 American military science-fiction action film based on Orson Scott Card's 1985 novel of the same name. Written and directed by Gavin Hood, the film stars Asa Butterfield as Andrew "Ender" Wiggin, an unusually gifted child who is sent to an advanced military academy in space to prepare for a future alien invasion. The supporting cast includes Harrison Ford, Hailee Steinfeld, and Viola Davis, with Abigail Breslin and Ben Kingsley. The film was released in Germany on October 24, 2013, followed by a release in the UK one day later. It was released in the United States, Canada, and several other countries on November 1, 2013, and was released in other territories by January 2014. ''Ender's Game'' received mixed reviews from critics and was a box-office bomb, grossing only $125.5 million on a $110–115 million budget. Plot In the future, humanity is preparing to launch an attack on the homeworld of an alien race, called the Formics, that had attacked E ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rocannon's World
''Rocannon's World'' is a science fiction novel by American writer Ursula K. Le Guin, her literary debut. It was published in 1966 as an Ace Double, along with Avram Davidson's ''The Kar-Chee Reign'', following the tête-bêche format. Though it is one of Le Guin's many works set in the universe of the technological Hainish Cycle, the story itself has many elements of heroic fantasy. The hero Gaveral Rocannon encounters lords who live in castles and wield swords, and other races much like fairies and gnomes, in his travels on a backward planet. The word "ansible" for a faster-than-light communicator, was coined in the novel. The term has since been widely used in science fiction. Plot summary Semley's story The novel begins with a prologue called "Semley's Necklace", which was first published as a stand-alone story titled "The Dowry of Angyar" in ''Amazing Stories'' (September 1964). A young woman named Semley takes a space voyage from her unnamed, technologically primitiv ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Robert Heinlein
Robert Anson Heinlein (; July 7, 1907 – May 8, 1988) was an American science fiction author, aeronautical engineer, and naval officer. Sometimes called the "dean of science fiction writers", he was among the first to emphasize scientific accuracy in his fiction, and was thus a pioneer of the subgenre of hard science fiction. His published works, both fiction and non-fiction, express admiration for competence and emphasize the value of critical thinking. His plots often posed provocative situations which challenged conventional social mores. His work continues to have an influence on the science-fiction genre, and on modern culture more generally. Heinlein became one of the first American science-fiction writers to break into mainstream magazines such as ''The Saturday Evening Post'' in the late 1940s. He was one of the best-selling science-fiction novelists for many decades, and he, Isaac Asimov, and Arthur C. Clarke are often considered the "Big Three" of English-language sci ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Galactic Empire
Galactic empires are a common trope used in science fantasy and science fiction, particularly in works known as 'space operas'. Many authors have either used a galaxy-spanning empire as background or written about the growth and/or decline of such an empire. The capital of a galactic empire is frequently a core world, such as a planet relatively close to a galaxy's supermassive black hole, which has advanced considerably in science and technology compared to current human civilization. Characterizations can vary wildly from malevolent forces attacking sympathetic victims to apathetic bureaucracies to more reasonable entities focused on social progress and anywhere in between. Notable examples The best known such organization to the general public today is the Galactic Empire from ''Star Wars'', which was formed in turn from the Galactic Republic. A military dictatorship based upon fear and terror, said Empire is an explicitly villainous force with linguistic and visual trai ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Left Hand Of Darkness
''The Left Hand of Darkness'' is a science fiction novel by U.S. writer Ursula K. Le Guin. Published in 1969, it became immensely popular, and established Le Guin's status as a major author of science fiction. The novel is set in the fictional Hainish universe as part of the ''Hainish Cycle'', a series of novels and short stories by Le Guin, which she introduced in the 1964 short story " The Dowry of Angyar". It was fourth in sequence of writing among the Hainish novels, preceded by ''City of Illusions'', and followed by '' The Word for World Is Forest''. The novel follows the story of Genly Ai, a human native of Terra, who is sent to the planet of Gethen as an envoy of the Ekumen, a loose confederation of planets. Ai's mission is to persuade the nations of Gethen to join the Ekumen, but he is stymied by a lack of understanding of their culture. Individuals on Gethen are ''ambisexual'', with no fixed sex; this has a strong influence on the culture of the planet, and creates a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
James Blish
James Benjamin Blish () was an American science fiction and fantasy writer. He is best known for his ''Cities in Flight'' novels and his series of ''Star Trek'' novelizations written with his wife, J. A. Lawrence. His novel ''A Case of Conscience'' won the Hugo Award. He is credited with creating the term "gas giant" to refer to large planetary bodies. Blish was a member of the Futurians. His first published stories appeared in ''Super Science Stories'' and ''Amazing Stories''. Blish wrote literary criticism of science fiction using the pen name William Atheling Jr. His other pen names included Donald Laverty, John MacDougal, and Arthur Lloyd Merlyn. Life Blish was born on May 23, 1921, at East Orange, New Jersey. While in high school, Blish self-published a fanzine, called ''The Planeteer'', using a hectograph. The fanzine ran for six issues. Blish attended meetings of the Futurian Science Fiction Society in New York City during this period. Futurian members Damon Knight a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ender's Game (series)
The ''Ender's Game'' series (often referred to as the ''Ender'' saga and also the Enderverse) is a series of science fiction books written by American author Orson Scott Card. The series started with the novelette ''Ender's Game'', which was later expanded into the novel of the same title. It currently consists of sixteen novels, thirteen short stories, 47 comic issues, an audioplay, and a film. The first two novels in the series, ''Ender's Game'' and ''Speaker for the Dead'', each won both the Hugo and Nebula Awards. The series is set in a future where mankind is facing annihilation by an aggressive alien society, an insect-like race known formally as " Formics", but more colloquially as "Buggers". The series protagonist, Andrew "Ender" Wiggin, is one of the child soldiers trained at Battle School (and eventually Command School) to be the future leaders for the protection of Earth. Enderverse Ender series Starting with ''Ender's Game'', five novels and one novella have been ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ender's Game
''Ender's Game'' is a 1985 military science fiction novel by American author Orson Scott Card. Set at an unspecified date in Earth's future, the novel presents an imperiled humankind after two conflicts with an insectoid alien species they dub "the buggers". In preparation for an anticipated third invasion, Earth's international military force recruits young children, including the novel's protagonist, Andrew "Ender" Wiggin, to be trained as elite officers. The children learn military strategy and leadership by playing increasingly difficult war games, including some in zero gravity, where Ender's tactical genius is revealed. The book originated as a short story of the same name, published in the August 1977 issue of ''Analog Science Fiction and Fact''. The novel was published on January 15, 1985. Later, by elaborating on characters and plotlines depicted in the novel, Card wrote additional books in the ''Ender's Game'' series. Card released an updated version of ''Ender's G ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bandwidth (computing)
In computing, bandwidth is the maximum rate of data transfer across a given path. Bandwidth may be characterized as network bandwidth, data bandwidth, or digital bandwidth. This definition of ''bandwidth'' is in contrast to the field of signal processing, wireless communications, modem data transmission, digital communications, and electronics, in which ''bandwidth'' is used to refer to analog signal bandwidth measured in hertz, meaning the frequency range between lowest and highest attainable frequency while meeting a well-defined impairment level in signal power. The actual bit rate that can be achieved depends not only on the signal bandwidth but also on the noise on the channel. Network capacity The term ''bandwidth'' sometimes defines the net bit rate 'peak bit rate', 'information rate,' or physical layer 'useful bit rate', channel capacity, or the maximum throughput of a logical or physical communication path in a digital communication system. For example, bandwidth test ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
