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Space Station
A space station (or orbital station) is a spacecraft which remains orbital spaceflight, in orbit and human spaceflight, hosts humans for extended periods of time. It therefore is an artificial satellite featuring space habitat (facility), habitation facilities. The purpose of maintaining a space station varies depending on the program. Most often space stations have been research stations, but they have also served militarization of space, military or commercialization of space, commercial uses, such as hosting space tourism, space tourists. Space stations have been hosting the only continuous human presence in space, presence of humans in space. The first space station was Salyut 1 (1971), hosting the first crew, of the ill-fated Soyuz 11. Consecutively space stations have been operated since Skylab (1973) and occupied since 1987 with the Salyut program, Salyut successor Mir. Uninterrupted human presence in orbital space through space stations have been sustained since the operat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tiangong Space Station
Tiangong (), officially the ''Tiangong'' space station (), is a permanently crewed space station constructed by China and operated by China Manned Space Agency. Tiangong is a modular design, with modules docked together while in low Earth orbit, between above the surface. It is China's first long-term space station, part of the Tiangong program and the core of the "Third Step" of the China Manned Space Program; it has a pressurised volume of 340 m3 (12,000 cu ft), slightly over one third the size of the International Space Station. The space station aims to provide opportunities for space-based experiments and a platform for building capacity for scientific and technological innovation. The construction of the station is based on the experience gained from its precursors, Tiangong-1 and Tiangong-2. The first module, the ''Tianhe core module, Tianhe'' ("Harmony of the Heavens") core module, was launched on 29 April 2021. This was followed by multiple crewed and uncrewed miss ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Expedition 1
Expedition 1 was the first long-duration expedition to the International Space Station (ISS). The three-person crew stayed aboard the station for 136 days, from 2 November 2000 to 19 March 2001. It was the beginning of an uninterrupted human presence on the station which continues as of . The official start of the expedition occurred when the crew docked to the station on 2 November 2000, aboard the Russian spacecraft Soyuz TM-31, which had launched on 31 October 2000 at the Baikonur Cosmodrome in Kazakhstan. During their mission, the Expedition 1 crew activated various systems on board the station, unpacked equipment that had been delivered, and hosted three visiting Space Shuttle crews and two uncrewed Russian Progress resupply vehicles. The crew was very busy throughout the mission, which was declared a success. The three visiting Space Shuttles brought equipment, supplies, and key components of the space station. The first of these, STS-97, docked in early Dec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Boys' Life
''Scout Life'' (formerly ''Boys' Life'') is the monthly magazine of the Boy Scouts of America (BSA). Its target readers are children between the ages of 6 and 18. The magazine‘s headquarters are in Irving, Texas. ''Scout Life'' is published in two demographic editions. Both editions often had the same cover, but are tuned to the target audience through the inclusion of 16–20 pages of unique content per edition. The first edition is suitable for the youngest members of Cub Scouting, the 6-to-10-year-old Cub Scouts, and first-year Webelos Scouts. The second edition is appropriate for 11-to-18-year-old boys and girls, which includes second-year Webelos through 18-year-old Boy Scouts, Varsity Scouts and Venturers. If the subscription was obtained through registration in the Boy Scouts of America program, the publisher selects the appropriate edition based on the scout's age. In June 2007, ''Boys' Life'' garnered four Distinguished Achievement Awards conferred by the A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hermann Oberth
Hermann Julius Oberth (; 25 June 1894 – 28 December 1989) was an Austria-Hungary, Austro-Hungarian-born German physicist and rocket pioneer of Transylvanian Saxons, Transylvanian Saxon descent. Oberth supported Nazi Germany's war effort and received the War Merit Cross, War Merit Cross (1st Class) in 1943.'''' Early life Oberth was born into a Transylvanian Saxons, Transylvanian Saxon family in Nagyszeben (Hermannstadt), Kingdom of Hungary (today Sibiu in Romania); and besides his native German language, German, he was fluent in Hungarian language, Hungarian and Romanian language, Romanian as well. At the age of 11, Oberth's interest in rocketry was sparked by the novels of Jules Verne, especially ''From the Earth to the Moon'' and ''Around the Moon''. He was fond of reading them over and over until they were engraved in his memory. As a result, Oberth constructed his first model rocket as a school student at the age of 14. In his youthful experiments, he arrived independentl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Konstantin Tsiolkovsky
Konstantin Eduardovich Tsiolkovsky (; rus, Константин Эдуардович Циолковский, p=kənstɐnʲˈtʲin ɪdʊˈardəvʲɪtɕ tsɨɐlˈkofskʲɪj, a=Ru-Konstantin Tsiolkovsky.oga; – 19 September 1935) was a Russian rocket scientist who pioneered astronautics. Along with Hermann Oberth and Robert H. Goddard, he is one of the pioneers of space flight and the founding father of modern rocketry and astronautics. His works later inspired Wernher von Braun and leading Soviet rocket engineering, rocket engineers Sergei Korolev and Valentin Glushko, who contributed to the success of the Soviet space program. Tsiolkovsky spent most of his life in a log house on the outskirts of Kaluga, about southwest of Moscow. A recluse by nature, his unusual habits made him seem bizarre to his fellow townsfolk. Early life Tsiolkovsky was born in (now in Spassky District, Ryazan Oblast), in the Russian Empire, to a middle-class family. His father, Makary Edward Er ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wired (magazine)
''Wired'' is a bi-monthly American magazine that focuses on how emerging technologies affect culture, the economy, and politics. It is published in both print and Online magazine, online editions by Condé Nast. The magazine has been in publication since its launch in January 1993. Its editorial office is based in San Francisco, California, with its business headquarters located in New York City. ''Wired'' quickly became recognized as the voice of the emerging digital economy and culture and a pace setter in print design and web design. From 1998 until 2006, the magazine and its website, ''Wired.com'', experienced separate ownership before being fully consolidated under Condé Nast in 2006. It has won multiple National Magazine Awards and has been credited with shaping discourse around the digital revolution. The magazine also coined the term Crowdsourcing, ''crowdsourcing'', as well as its annual tradition of handing out Vaporware Awards. ''Wired'' has launched several in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Brick Moon
"The Brick Moon" is a novella by American writer Edward Everett Hale, published serially in the magazine ''The Atlantic Monthly'' in 1869. It is a work of speculative fiction containing the first known fictional description of an artificial satellite (though in 1728 a publication by Isaac Newton included a description of Newton's cannonball, a hypothetical artificial object which is projected from a mountain, as a thought experiment to explain why natural satellites move as they do). Synopsis "The Brick Moon" is presented as a journal. It describes the construction and launch into orbit of a sphere, 200 feet in diameter, built of bricks. The device is intended as a navigational aid, but is launched accidentally with people aboard. They survive, and so the story also provides the first known fictional description of a space station. The author even surmised correctly the idea of needing four satellites visible above the horizon for navigation, as for modern GPS. Publication ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Edward Everett Hale
Edward Everett Hale (April 3, 1822 – June 10, 1909) was an American author, historian, and Unitarian minister, best known for his writings such as " The Man Without a Country", published in ''Atlantic Monthly'', in support of the Union during the Civil War. He was the grand-nephew of Nathan Hale, the American spy during the Revolutionary War. Life and career Hale was born on April 3, 1822, in Boston, Massachusetts, the son of Nathan Hale (1784–1863), proprietor and editor of the ''Boston Daily Advertiser'', and Sarah Preston Everett; and the brother of Lucretia Peabody Hale, Susan Hale, and Charles Hale. Edward Hale was a nephew of Edward Everett, the orator and statesman, and grand-nephew of Nathan Hale (1755–1776), the Revolutionary War hero executed by the British for espionage. Edward Everett Hale was also a descendant of Richard Everett and related to Helen Keller. Hale was a child prodigy who exhibited extraordinary literary skills. He graduated from Bo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Orbital Station-keeping
In astrodynamics, orbital station-keeping is keeping a spacecraft at a fixed distance from another spacecraft or celestial body. It requires a series of orbital maneuvers made with thruster burns to keep the active craft in the same orbit as its target. For many low Earth orbit satellites, the effects of non-Keplerian forces, i.e. the deviations of the gravitational force of the Earth from that of a homogeneous sphere, gravitational forces from Sun/Moon, solar radiation pressure and air drag, must be counteracted. For spacecraft in a halo orbit around a Lagrange point, station-keeping is even more fundamental, as such an orbit is unstable; without an active control with thruster burns, the smallest deviation in position or velocity would result in the spacecraft leaving orbit completely. Perturbations The deviation of Earth's gravity field from that of a homogeneous sphere and gravitational forces from the Sun and Moon will in general perturb the orbital plane. For a Sun-syn ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thruster (other)
Thruster may refer to: Propulsion devices A thruster is a propulsive device used by spacecraft and watercraft for station keeping, attitude control, in the reaction control system, or long-duration, low-thrust acceleration. * Reaction engine Spacecraft thrusters *Rocket engine, using exothermic chemical reactions of the propellant(s) *Electrohydrodynamic thruster, using ionized air (only for use in an atmosphere) * Electrostatic ion thruster, using high-voltage electrodes *Ion thruster, using beams of ions accelerated electrically *Hall-effect thruster, a type of ion thruster *Pulsed inductive thruster, a pulsed form of ion thruster * Magnetoplasmadynamic thruster, electric propulsion using the Lorentz force * Electrodeless plasma thruster, electric propulsion using ponderomotive force * Pulsed plasma thruster, using current arced across a solid propellant * Plasma thruster Marine thrusters *Azimuth thruster, pod underneath a ship, instead of a propeller and rudder *Bow thru ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Space Docking
Docking and berthing of spacecraft is the joining of two space vehicles. This connection can be temporary, or partially permanent such as for space station modules. ''Docking'' specifically refers to joining of two separate free-flying space vehicles. ''Berthing'' refers to mating operations where a passive module/vehicle is placed into the mating interface of another space vehicle by using a robotic arm. Because the modern process of un-berthing requires more crew labor and is time-consuming, berthing operations are unsuited for rapid crew evacuations in the event of an emergency. History Docking Spacecraft docking capability depends on space rendezvous, the ability of two spacecraft to find each other and station-keep in the same orbit. This was first developed by the United States for Project Gemini. It was planned for the crew of Gemini 6 to rendezvous and manually dock under the command of Wally Schirra, with an uncrewed Agena Target Vehicle in October 1965, but t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Modular Building
A modular building is a prefabricated building that consists of repeated sections called modules. Modularity involves constructing sections away from the building site, then delivering them to the intended site. Installation of the prefabricated sections is completed on site. Prefabricated sections are sometimes placed using a crane (machine), crane. The modules can be placed side-by-side, end-to-end, or stacked, allowing for a variety of configurations and styles. After placement, the modules are joined together using inter-module connections, also known as inter-connections. The inter-connections tie the individual modules together to form the overall building structure. Uses Modular buildings may be used for long-term, temporary or permanent facilities, such as construction camps, schools and classrooms, civilian and military housing, and industrial facilities. Modular buildings are used in remote and rural areas where conventional construction may not be reasonable or p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
