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Space Dock
A space dock is a hypothesised type of space station that is able to repair or build spacecraft similar to maritime shipyards on Earth. They remove the need for new spacecraft to perform a space launch to reach space and existing spacecraft to make an atmospheric entry and landing for repair work. They currently only exist in fiction, however concept work has been undertaken on real space dock facilities that could be built with current technology. Real world Space docks, as part of a wider space logistics infrastructure, are considered a relevant part of a true space-faring society. Scientists of the American Institute of Aeronautics and Astronautics have proposed that future, near-term LEO space facilities should include "a large space dock making possible the on-orbit assembly and maintenance of large space facilities, space platforms, and spacecraft" (see image for design concept). A space dock / hangar could also allow enclosed (and possibly pressurized) maintenance of s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Space Station
A space station is a spacecraft capable of supporting a human crew in orbit for an extended period of time, and is therefore a type of space habitat. It lacks major propulsion or landing systems. An orbital station or an orbital space station is an artificial satellite (i.e. a type of orbital spaceflight). Stations must have docking ports to allow other spacecraft to dock to transfer crew and supplies. The purpose of maintaining an orbital outpost varies depending on the program. Space stations have most often been launched for scientific purposes, but military launches have also occurred. Space stations have harboured so far the only long-duration direct human presence in space. After the first station Salyut 1 (1971) and its tragic Soyuz 11 crew, space stations have been operated consecutively since Skylab (1973), having allowed a progression of long-duration direct human presence in space. Stations have been occupied by consecutive crews since 1987 with the Salyut successor M ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States Air Force Academy
The United States Air Force Academy (USAFA) is a United States service academy in El Paso County, Colorado, immediately north of Colorado Springs. It educates cadets for service in the officer corps of the United States Air Force and United States Space Force. It is the youngest of the five service academies, having graduated its first class in 1959, but is the third in seniority. Graduates of the academy's four-year program receive a Bachelor of Science degree and are commissioned as second lieutenants in the U.S. Air Force or U.S. Space Force. The academy is also one of the largest tourist attractions in Colorado, attracting approximately a million visitors each year. Admission is highly competitive, with nominations divided equally among Congressional districts. Recent incoming classes have had about 1,200 cadets; since 2012, around 20% of each incoming class does not graduate. During their tenure at the Academy, cadets receive tuition, room and board, and a monthly ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Honorverse
The Honorverse is a military science fiction book series, its two subseries, two prequel series, and anthologies created by David Weber and published by Baen Books. They are centered on the space navy career of the principal protagonist Honor Harrington. The books have made ''The New York Times'' Best Seller list. Plot The series follows Honor Harrington, military heroine and later, influential politician, during a time of extreme interstellar change and tension. Most of the more than 20 novels and anthology collections cover events between 4000 and 4022 AD with "PD" (Post-Diaspora) dating beginning with a dispersal to the stars from our sun ("Sol") in 2103 AD. The main series novels are set primarily in a timeline beginning 40 years after Harrington's birth on October 1, 3962 AD (1859 PD), and some short stories flesh out her earlier career. Additional novels and shorter fiction take place up to 350 years earlier, and still-earlier canon history is filled in between narrative ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Babylon 5
''Babylon 5'' is an American space opera television series created by writer and producer J. Michael Straczynski, under the Babylonian Productions label, in association with Straczynski's Synthetic Worlds Ltd. and Warner Bros. Domestic Television. After the successful airing of a test pilot movie on February 22, 1993, '' Babylon 5: The Gathering'', Warner Bros. commissioned the series for production in May 1993 as part of its Prime Time Entertainment Network (PTEN). The show premiered in the US on January 26, 1994, and ran for five 22-episode seasons. The series follows the human military staff and alien diplomats stationed on a space station, ''Babylon 5'', built in the aftermath of several major inter-species wars as a neutral ground for galactic diplomacy and trade. Major plotlines included ''Babylon 5'' embroilment in a millennial cyclic conflict between ancient races, inter-race wars and their aftermaths, and intra-race intrigue and upheaval. The human characters, in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Star Wars
''Star Wars'' is an American epic film, epic space opera multimedia franchise created by George Lucas, which began with the Star Wars (film), eponymous 1977 film and quickly became a worldwide popular culture, pop-culture Cultural impact of Star Wars, phenomenon. The franchise has been expanded into List of Star Wars films, various films and Star Wars expanded to other media, other media, including List of Star Wars television series, television series, Star Wars video games, video games, List of Star Wars books, novels, List of Star Wars comic books, comic books, List of Star Wars theme parks attractions, theme park attractions, and Star Wars: Galaxy's Edge, themed areas, comprising an all-encompassing fictional universe. ''Star Wars'' is one of the List of highest-grossing media franchises, highest-grossing media franchises of all time. The original film (''Star Wars''), retroactively subtitled ''Episode IV: A New Hope'' (1977), was followed by the sequels ''The Empire Strik ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Science Fiction
Science fiction (sometimes shortened to Sci-Fi or SF) is a genre of speculative fiction which typically deals with imaginative and futuristic concepts such as advanced science and technology, space exploration, time travel, parallel universes, extraterrestrial life, sentient artificial intelligence, cybernetics, certain forms of immortality (like mind uploading), and the singularity. Science fiction predicted several existing inventions, such as the atomic bomb, robots, and borazon, whose names entirely match their fictional predecessors. In addition, science fiction might serve as an outlet to facilitate future scientific and technological innovations. Science fiction can trace its roots to ancient mythology. It is also related to fantasy, horror, and superhero fiction and contains many subgenres. Its exact definition has long been disputed among authors, critics, scholars, and readers. Science fiction, in literature, film, television, and other media, has beco ... [...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. The design would permit vehicles to travel up the cable from a planetary surface, such as the Earth's, directly into orbit, without the use of large rockets. An Earth-based space elevator could not feasibly be simply a tall tower supported from below, due to the immense weight - instead it 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 force, which is stronger at the upper end, would result in the cable being held up, under tension, and stationary over a singl ... [...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. The design would permit vehicles to travel up the cable from a planetary surface, such as the Earth's, directly into orbit, without the use of large rockets. An Earth-based space elevator could not feasibly be simply a tall tower supported from below, due to the immense weight - instead it 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 force, which is stronger at the upper end, would result in the cable being held up, under tension, and stationary over a singl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Counterweight
A counterweight is a weight that, by applying an opposite force, provides balance and stability of a mechanical system. The purpose of a counterweight is to make lifting the load faster and more efficient, which saves energy and causes less wear and tear on the lifting machine. Counterweights are often used in traction lifts (elevators), cranes and funfair rides. In these applications, the expected load multiplied by the distance that load will be spaced from the central support (called the "tipping point") must be equal to the counterweight's mass times its distance from the tipping point in order to prevent over-balancing either side. This distance times mass is called the load moment. A counterbalance is a weight or force that balances or offsets another as when two objects of equal weight, power, or influence are acting in opposition to each other. The objects are then said to be in counterbalance. Counterweights in action Trebuchet: There are five major components of a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Moon
The Moon is Earth's only natural satellite. It is the fifth largest satellite in the Solar System and the largest and most massive relative to its parent planet, with a diameter about one-quarter that of Earth (comparable to the width of Australia). The Moon is a planetary-mass object with a differentiated rocky body, making it a satellite planet under the geophysical definitions of the term and larger than all known dwarf planets of the Solar System. It lacks any significant atmosphere, hydrosphere, or magnetic field. Its surface gravity is about one-sixth of Earth's at , with Jupiter's moon Io being the only satellite in the Solar System known to have a higher surface gravity and density. The Moon orbits Earth at an average distance of , or about 30 times Earth's diameter. Its gravitational influence is the main driver of Earth's tides and very slowly lengthens Earth's day. The Moon's orbit around Earth has a sidereal period of 27.3 days. During each synodic period ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Raw Material
A raw material, also known as a feedstock, unprocessed material, or primary commodity, is a basic material that is used to produce goods, finished goods, energy, or intermediate materials that are feedstock for future finished products. As feedstock, the term connotes these materials are bottleneck assets and are required to produce other products. The term ''raw material'' denotes materials in unprocessed or minimally processed states; e.g., raw latex, crude oil, cotton, coal, raw biomass, iron ore, air, lumber, logs, water, or "any product of agriculture, forestry, fishing or mineral in its natural form or which has undergone the transformation required to prepare it for international marketing in substantial volumes". The term ''secondary raw material'' denotes waste material which has been recycled and injected back into use as productive material. Ceramic While pottery originated in many different points around the world, it is certain that it was brought to light mostly ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vision For Space Exploration
Vision, Visions, or The Vision may refer to: Perception Optical perception * Visual perception, the sense of sight * Visual system, the physical mechanism of eyesight * Computer vision, a field dealing with how computers can be made to gain understanding from digital images or videos * Machine vision, technology for imaging-based automatic inspection Perception of the future * Foresight (psychology), in business, the ability to envisage future market trends and plan accordingly * Goal, a desired result ** Vision statement, a declaration of objectives to guide decision-making Other perceptions * Vision (spirituality), a supernatural experience that conveys a revelation * Hallucination, a perception of something that does not exist Arts and media Events * Visions (convention), a science fiction event * Vision Festival, a New York City art festival Film and television * "The Vision", episode of '' Alcoa Presents: One Step Beyond'' * ''The Vision'' (film), 1998 British televisio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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