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Ganymede City
''3001: The Final Odyssey'' is a 1997 science fiction novel by British writer Arthur C. Clarke. It is the fourth and final book in Clarke's '' Space Odyssey'' series. Plot summary The novel begins with a brief prologue describing the bioforms—dubbed the First-Born—who created the black monoliths. They evolved from " primordial soup", and over the course of millions of years, became a space-faring species. Perceiving that nothing was more precious than "mind", they catalysed the evolution of intelligent species wherever they went, by increasing the intelligent species' chance of survival. After visiting Earth, the First-Born found a way to impress themselves into the fabric of space and time, becoming effectively immortal. Meanwhile, the monoliths—implied to have been forgotten by their creators when they ascended to a higher state of being—continued to watch over their subjects. ''3001'' follows the adventures of Frank Poole, the astronaut killed by the HAL 900 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arthur C
Arthur is a masculine given name of uncertain etymology. Its popularity derives from it being the name of the legendary hero King Arthur. A common spelling variant used in many Slavic, Romance, and Germanic languages is Artur. In Spanish and Italian it is Arturo. Etymology The earliest attestation of the name Arthur is in the early 9th century Welsh-Latin text '' Historia Brittonum'', where it refers to a circa 5th century Romano-British general who fought against the invading Saxons, and who later gave rise to the famous King Arthur of medieval legend and literature. A possible earlier mention of the same man is to be found in the epic Welsh poem '' Y Gododdin'' by Aneirin, which some scholars assign to the late 6th century, though this is still a matter of debate and the poem only survives in a late 13th century manuscript entitled the Book of Aneirin. A 9th-century Breton landowner named Arthur witnessed several charters collected in the '' Cartulary of Redon''. The Irish ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Space Elevator
A space elevator, also referred to as a space bridge, star ladder, and orbital lift, is a proposed type of planet-to-space transportation system, often depicted in science fiction. The main component would be a cable (also called a tether) anchored to the surface and extending into space. An Earth-based space elevator would consist of a cable with one end attached to the surface near the equator and the other end attached to a counterweight in space beyond geostationary orbit (35,786 km altitude). The competing forces of gravity, which is stronger at the lower end, and the upward centrifugal pseudo-force (it is actually the inertia of the counterweight that creates the tension on the space side), which is stronger at the upper end, would result in the cable being held up, under tension, and stationary over a single position on Earth. With the tether deployed, climbers (crawlers) could repeatedly climb up and down the tether by mechanical means, releasing their cargo to and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Upload
Uploading refers to ''transmitting'' data from one computer system to another through means of a network. Common methods of uploading include: uploading via web browsers, FTP clients, and terminals ( SCP/ SFTP). Uploading can be used in the context of (potentially many) clients that send files to a central server. While uploading can also be defined in the context of sending files between distributed clients, such as with a peer-to-peer (P2P) file-sharing protocol like BitTorrent, the term file sharing is more often used in this case. Moving files within a computer system, as opposed to over a network, is called file copying. Uploading directly contrasts with downloading, where data is ''received'' over a network. In the case of users uploading files over the internet, uploading is often slower than downloading as many internet service providers (ISPs) offer asymmetric connections, which offer more network bandwidth for downloading than uploading. Definition To t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Petabyte
The byte is a unit of digital information that most commonly consists of eight bits. Historically, the byte was the number of bits used to encode a single character of text in a computer and for this reason it is the smallest addressable unit of memory in many computer architectures. To disambiguate arbitrarily sized bytes from the common 8-bit definition, network protocol documents such as the Internet Protocol () refer to an 8-bit byte as an octet. Those bits in an octet are usually counted with numbering from 0 to 7 or 7 to 0 depending on the bit endianness. The size of the byte has historically been hardware-dependent and no definitive standards existed that mandated the size. Sizes from 1 to 48 bits have been used. The six-bit character code was an often-used implementation in early encoding systems, and computers using six-bit and nine-bit bytes were common in the 1960s. These systems often had memory words of 12, 18, 24, 30, 36, 48, or 60 bits, corresponding to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trojan Horse (computing)
In computing, a trojan horse (or simply trojan; often capitalized, but see below) is a kind of malware that misleads users as to its true intent by disguising itself as a normal program. Trojans are generally spread by some form of social engineering (security), social engineering. For example, a user may be duped into executing an email attachment disguised to appear innocuous (e.g., a routine form to be filled in), or into clicking on a fake advertisement on the Internet. Although their payload can be anything, many modern forms act as a backdoor (computing), backdoor, contacting a controller who can then have unauthorized access to the affected device. Ransomware attacks are often carried out using a trojan. Unlike computer viruses and Computer worm, worms, trojans generally do not attempt to inject themselves into other files or otherwise propagate themselves. Origins of the term The term is derived from the Ancient Greece, ancient Greek story of the deceptive Trojan Horse ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
First Contact (science Fiction)
First contact is a common theme in science fiction about the first meeting between humans and extraterrestrial life, or of any sentient species' first encounter with another one, given they are from different planets or natural satellites. It is closely related to the anthropological idea of first contact. Popularized by the 1897 book '' The War of the Worlds'' by H. G. Wells, the concept was commonly used throughout the 1950s and 60s, often as an allegory for Soviet infiltration and invasion. The 1960s American television series ''Star Trek'' introduced the concept of the " Prime Directive", a regulation intended to limit the negative consequences of first contact. Although there are a variety of circumstances under which first contact can occur, including indirect detection of alien technology, it is often portrayed as the discovery of the physical presence of an extraterrestrial intelligence. As a plot device, first contact is frequently used to explore a variety of t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Odyssey Two
''2010: Odyssey Two'' is a 1982 science fiction novel by British writer Arthur C. Clarke. It is the sequel to his 1968 novel '' 2001: A Space Odyssey'', though Clarke changed some elements of the story to align with the film version of ''2001''. Set in the year 2010, the plot centres on a joint Soviet-US mission aboard the Soviet spacecraft '' The Cosmonaut Alexei Leonov''. The mission has several objectives, including salvaging the spaceship ''Discovery'' and investigating the mysterious "monolith" discovered by Dave Bowman in ''2001: A Space Odyssey''. It was nominated for the Hugo Award for Best Novel in 1983. The novel was adapted for the screen by Peter Hyams and released as the film ''2010: The Year We Make Contact'' in 1984. The story is set nine years after the failure of the ''Discovery One'' mission to Jupiter.The novel version of ''2001'' featured the journey to Saturn instead: Clarke acknowledges this retroactive continuity in his author's foreword. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Light-year
A light-year, alternatively spelled light year (ly or lyr), is a unit of length used to express astronomical distances and is equal to exactly , which is approximately 9.46 trillion km or 5.88 trillion mi. As defined by the International Astronomical Union (IAU), a light-year is the distance that light travels in vacuum in one Julian year (365.25 days). Despite its inclusion of the word "year", the term should not be misinterpreted as a unit of time. The ''light-year'' is most often used when expressing distances to stars and other distances on a galactic scale, especially in non-specialist contexts and popular science publications. The unit most commonly used in professional astronomy is the parsec (symbol: pc, about 3.26 light-years). Definitions As defined by the International Astronomical Union (IAU), the light-year is the product of the Julian year (365.25 days, as opposed to the 365.2425-day Gregorian year or the 365.24219-day Tropical year that both approxim ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
David Bowman (Space Odyssey)
''Space Odyssey'' is a science fiction media franchise created by writer Arthur C. Clarke and filmmaker Stanley Kubrick, consisting of two films and four novels. The first novel was developed concurrently with Kubrick's film version and published after the release of the film. The second novel was made into a feature film directed by Peter Hyams and released in 1984. Two of Clarke's early short stories have ties to the series. Literature Short stories: * " The Sentinel" – short story written in 1948 and first published in 1951 as "Sentinel of Eternity" * " Encounter in the Dawn" – short story first published in 1953 (re-titled "Encounter at Dawn" or "Expedition to Earth" in some later collections) Novels: * '' 2001: A Space Odyssey'' – produced concurrently with the film and released in 1968 * '' 2010: Odyssey Two'' – 1982 novel, adapted as the 1984 film '' 2010: The Year We Make Contact'' with screenplay by Peter Hyams * '' 2061: Odyssey Three'' &nda ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Europa (moon)
Europa () is a moons of Jupiter, natural satellite (moon) of Jupiter. Being observable from Earth with common binoculars it is one of the four Galilean moons. As such it is a planetary-mass moon, the smallest and least massive orbiting Jupiter, and slightly smaller and less massive than Moon, Earth's. Europa is an icy moon, being of the three icy Galilean moons the closest orbiting Jupiter. As a result it is exhibiting a relatively young surface, driven by tidal heating. Probably having an iron–nickel alloy, iron–nickel core, it consists mainly of silicate rock, with a water-ice shell. It has a very thin atmosphere, composed primarily of oxygen. Its geologically young white-beige surface is Glacial striation, striated by light Tan (color), tan cracks and streaks, with very few impact craters. In addition to Earth-bound telescope observations, Europa has been examined by a succession of space-probe flybys, the first occurring in the early 1970s. In September 2022, the Juno ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Headquarters Of The United Nations
, image = Midtown Manhattan Skyline 004 (cropped).jpg , image_size = 275px , caption = View of the complex from Long Island City in 2021; from left to right: the Secretariat, Conference, and General Assembly buildings , location = New York City ( international zone) , address = 760 United Nations Plaza,Manhattan, New York, U.S. , coordinates = , groundbreaking_date = , start_date = , completion_date = , inauguration_date = , architect = Board of designers mediated by Harrison & Abramovitz , owner = United Nations , cost = US$65 million (equivalent to $ in ) , floor_count = 39 , references = , mapframe-zoom = 11 , altitude = , building_type = , architectural_style = Modern architecture , height = , structural_engineer = , main_contractor = Fuller, Turner, Slattery, and Walsh , architecture_firm = The headquarters of the Uni ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Callisto (moon)
Callisto ( ) is the second-largest moon of Jupiter, after Ganymede. In the Solar System it is the third-largest moon after Ganymede and Saturn's largest moon Titan, and nearly as large as the smallest planet Mercury. Callisto is, with a diameter of , roughly a third larger than Earth's Moon and orbits Jupiter on average at a distance of , which is about five times further out than the Moon orbiting Earth. It is the outermost of the four large Galilean moons of Jupiter, which were discovered in 1610 with one of the first telescopes, and is today visible from Earth with common binoculars. The surface of Callisto is the oldest and most heavily cratered in the Solar System. Its surface is completely covered with impact craters. It does not show any signatures of subsurface processes such as plate tectonics or volcanism, with no signs that geological activity in general has ever occurred, and is thought to have evolved predominantly under the influence of impacts. Promine ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
