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Orbital Ring
An orbital ring is a concept of an artificial ring placed around a body and set rotating at such a rate that the apparent centrifugal force is large enough to counteract the force of gravity. For the Earth, the required speed is on the order of 10 km/sec, compared to a typical low Earth orbit velocity of 8 km/sec. The structure is intended to be used as a space station or as a planetary vehicle for very high-speed transportation or space launch. Because the cable is spinning faster than orbital velocity, there is a net outward force that is countered by internal tension within the cable. This resists any attempt to bend it and allows it to carry loads. In typical conceptions, a motorized platform is placed on the cable that runs in the opposite direction at the speed that makes it appear stationary above the ground. Above Earth's equator, a platform running at 9.5 km/sec in the direction opposite the cable will appear stationary and allow a cable to be lowered to f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tekhnika Molodezhi
''Tekhnika Molodezhi'' (russian: Техника — молодёжи, "Technology for the Youth") is a Soviet Union, Soviet, and eventually Russian popular science magazine which has been published monthly since 1933. History and profile ''Tekhnika Molodezhi'' was established in 1933. During the Soviet era, it was often the first publisher of foreign science fiction authors in the USSR. The magazine had a science fiction section. References External linksOfficial website Journal Archive 1933-2012 1933 establishments in the Soviet Union Magazines established in 1933 Popular science magazines Russian-language magazines Monthly magazines published in Russia Science and technology magazines published in Russia Magazines published in the Soviet Union Soviet science fiction Science and technology in the Soviet Union {{Russia-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Starship Troopers (film)
''Starship Troopers'' is a 1997 American science fiction action film directed by Paul Verhoeven. The film is based on the 1959 novel of the same name by Robert A. Heinlein and was written by Ed Neumeier. Set in the 23rd century, the film follows the story of teenager Johnny Rico and his friends as they serve in the military under the Earth world government, known as the United Citizen Federation. As humanity explores and colonizes outer space, they come into conflict with an alien species known as the Arachnids, leading to an interstellar war. The film stars Casper Van Dien, Dina Meyer, Denise Richards, Jake Busey, Neil Patrick Harris, Patrick Muldoon, and Michael Ironside. Development of ''Starship Troopers'' began in 1991 as a separate project called ''Bug Hunt at Outpost 7'', written by Neumeier. Producer Jon Davison noticed many similarities between Neumeier's work and Heinlein's book and asked him to re-work the script to more closely follow the novel and gain more inter ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Seveneves
''Seveneves'' is a hard science fiction novel by Neal Stephenson published in 2015. The story tells of the desperate efforts to preserve ''Homo sapiens'' in the wake of apocalyptic events on Earth after the unexplained disintegration of the Moon and the remaking of human society as a space-based civilization after a severe genetic bottleneck. Plot Part One In the near future, an unknown agent causes the Moon to shatter. As the pieces begin to collide with one another, astronomer and science popularizer "Doc" Dubois Harris calculates that Moon fragments will begin entering Earth's atmosphere, forming a white sky and blanketing the Earth within two years with what he calls a "Hard Rain" of bolides, causing the atmosphere to heat to incandescence and the oceans to boil away, rendering Earth uninhabitable for thousands of years. The world's leaders evacuate as many people and resources as possible to a swarm of "arklet" habitats called a "Cloud Ark" in orbit with the Internationa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Neal Stephenson
Neal Town Stephenson (born October 31, 1959) is an American writer known for his works of speculative fiction. His novels have been categorized as science fiction, historical fiction, cyberpunk, postcyberpunk, and baroque. Stephenson's work explores mathematics, cryptography, linguistics, philosophy, currency, and the history of science. He also writes non-fiction articles about technology in publications such as ''Wired''. He has written novels with his uncle, George Jewsbury ("J. Frederick George"), under the collective pseudonym Stephen Bury. Stephenson has worked part-time as an advisor for Blue Origin, a company (founded by Jeff Bezos) developing a spacecraft and a space launch system, and is also a cofounder of Subutai Corporation, whose first offering is the interactive fiction project ''The Mongoliad''. He was Magic Leap's Chief Futurist from 2014 to 2020. Early life Born on October 31, 1959, in Fort Meade, Maryland, Stephenson came from a family of engineers and scient ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Orion's Arm
Orion's Arm (also called the Orion's Arm Universe Project, OAUP, or simply OA and formerly known as the Orion's Arm Worldbuilding Group) is a multi-authored online science fiction world-building project, first established in 2000 by M. Alan Kazlev, Donna Malcolm Hirsekorn, Bernd Helfert and Anders Sandberg and further co-authored by many people since. Anyone can contribute articles, stories, artwork, or music to the website. A large mailing list exists, in which members debate aspects of the world they are creating, discussing additions, modifications, issues arising, and work to be done. A computer game and a tabletop role-playing game are being developed by the community, within the OA milieu. There is an ezine for Orion's Arm fiction, art, and commentary, called ''Voices: Future Tense'', add-ons for the Celestia program to displaying Orion's Arm planets, spacecraft and other objects, and additional transhumanist flavored SF illustrations. The first published Orion's Arm bo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Collaborative Fiction
Collaborative fiction is a form of writing by a group of authors who share creative control of a story. Collaborative fiction can occur for commercial gain, as part of education, or recreationally – many collaboratively written works have been the subject of a large degree of academic research. Process A collaborative author may focus on a specific protagonist or character in the narrative thread, and then pass the story to another writer for further additions or a change in focus to a different protagonist. Alternatively, authors might write the text for their own particular subplot within an overall narrative, in which case one author may have the responsibility of integrating the story as a whole. In Italy, various groups of authors have developed more advanced methods of interaction and production The methods used by commercial collaborative writers vary tremendously. When beginning writing the short story 'the toy mill' Karl Schroeder and David Nickle began by writi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Battle Angel Alita
''Gunnm '' ( ja, 銃夢, Ganmu, ), also known as ''Battle Angel Alita'' in English, is a Japanese cyberpunk manga series created by Yukito Kishiro and originally published in Shueisha's ''Business Jump'' magazine from 1990 to 1995. The second of the comic's nine volumes was adapted in 1993 into a two-part anime original video animation titled ''Battle Angel'' for North American release by ADV Films and the UK and Australian release by Manga Entertainment. Manga Entertainment also dubbed ''Battle Angel Alita'' into English. A live-action film adaptation titled '' Alita: Battle Angel'' was released on February 14, 2019. The series is set in the post-apocalyptic future and focuses on Alita ("Gally" in the original Japanese version, and several other countries), a female cyborg who has lost all memories and is found in a junkyard by a cybernetics doctor who rebuilds and takes care of her. She discovers that there is one thing she remembers, the legendary cyborg martial art Pa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Final Odyssey
''The'' () is a grammatical article in English, denoting persons or things that are already or about to be mentioned, under discussion, implied or otherwise presumed familiar to listeners, readers, or speakers. It is the definite article in English. ''The'' is the most frequently used word in the English language; studies and analyses of texts have found it to account for seven percent of all printed English-language words. It is derived from gendered articles in Old English which combined in Middle English and now has a single form used with nouns of any gender. The word can be used with both singular and plural nouns, and with a noun that starts with any letter. This is different from many other languages, which have different forms of the definite article for different genders or numbers. Pronunciation In most dialects, "the" is pronounced as (with the voiced dental fricative followed by a schwa) when followed by a consonant sound, and as (homophone of the archai ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fountains Of Paradise
''The Fountains of Paradise'' is a 1979 science fiction novel by British writer Arthur C. Clarke. Set in the 22nd century, it describes the construction of a space elevator. This "orbital tower" is a giant structure rising from the ground and linking with a satellite in geostationary orbit at the height of approximately 36,000 kilometers (approx. 22,300 miles). Such a structure would be used to raise payloads to orbit without the expense of using rockets. The novel won both the Hugo and Nebula Awards for Best Novel. Plot Summary The novel focuses primarily on a project known as the Orbital Tower proposed by the main character, Vannevar Morgan. The tower is to stretch from the Earth's equator to a satellite that is in geostationary orbit. Such a structure would greatly reduce the cost of sending people and supplies into space. The main story is framed by two other stories. The first one tells of King Kalidasa, living thousands of years before Morgan is born, who is const ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Low Earth Orbit
A low Earth orbit (LEO) is an orbit around Earth with a period of 128 minutes or less (making at least 11.25 orbits per day) and an eccentricity less than 0.25. Most of the artificial objects in outer space are in LEO, with an altitude never more than about one-third of the radius of Earth. The term ''LEO region'' is also used for the area of space below an altitude of (about one-third of Earth's radius). Objects in orbits that pass through this zone, even if they have an apogee further out or are sub-orbital, are carefully tracked since they present a collision risk to the many LEO satellites. All crewed space stations to date have been within LEO. From 1968 to 1972, the Apollo program's lunar missions sent humans beyond LEO. Since the end of the Apollo program, no human spaceflights have been beyond LEO. Defining characteristics A wide variety of sources define LEO in terms of altitude. The altitude of an object in an elliptic orbit can vary significantly along the orbit. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nodal Precession
Nodal precession is the precession of the orbital plane of a satellite around the rotational axis of an astronomical body such as Earth. This precession is due to the non-spherical nature of a rotating body, which creates a non-uniform gravitational field. The following discussion relates to low Earth orbit of artificial satellites, which have no measurable effect on the motion of Earth. The nodal precession of more massive, natural satellites like the Moon is more complex. Around a spherical body, an orbital plane would remain fixed in space around the gravitational primary body. However, most bodies rotate, which causes an equatorial bulge. This bulge creates a gravitational effect that causes orbits to precess around the rotational axis of the primary body. The direction of precession is opposite the direction of revolution. For a typical prograde orbit around Earth (that is, in the direction of primary body's rotation), the longitude of the ascending node decreases, that is the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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