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Space Environment Simulation Laboratory
The Space Environment Simulation Laboratory (SESL) is a facility in Building 32 at the Lyndon B. Johnson Space Center that can perform large-scale simulations of the vacuum and thermal environments that would be encountered in space. Built in 1965, it was initially used to test Apollo Program spacecraft and equipment in a space environment, and continues to be used by NASA for testing equipment. It was designated a National Historic Landmark in 1985. Description The Space Environment Simulation Laboratory is a large industrial test facility on the Johnson Space Center grounds in Building 32. Its principal features are two test chambers, one larger and one smaller. Both are cylindrical chambers that have the ability to provide a near vacuum, and have configurable lighting systems for simulating sunlight from a variety of angles. Chamber A Chamber A is the larger of the two chambers. It has a diameter of , with a circular floor that can be rotated 180°. Test subject equipmen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
2TV-1
TV1, TV One or TVOne may refer to the following television networks and channels: * TV1 (Australian TV channel) * TV1 (Bosnia and Herzegovina), now O Kanal * TV1 (Canadian TV channel) * TVOne Cyprus, now Omega * TV1 (Estonian TV channel) * TV1 (India), replaced by Jai Telangana TV * TV1 (Lithuania) * TV1 (Malaysian TV network) * TV1 (Tanzanian TV channel) * TV One (American TV channel) * TV One (Sri Lankan TV channel) * tvOne (Indonesian TV network) * TVOne Canada, a former Urdu language channel * TV One Pakistan * Norsk TV1, Norway * Yle TV1, Finland * One (Australian TV channel), now 10 Bold * One (Canadian TV channel) * One (German TV channel) * One (Maltese TV channel) * Eén, formerly VRT TV1, Belgium * SABC 3, formerly TV1, South Africa * SVT1, formerly TV1, Sweden * TRT 1, Turkey * TVNZ 1, formerly TV One, New Zealand See also *1TV (other) *Channel 1 (other) Channel One or channel 1 may refer to: Television networks and channels *Channel One ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lyndon B
Lyndon may refer to: Places * Lyndon, Alberta, Canada * Lyndon, Rutland, East Midlands, England * Lyndon, Solihull, West Midlands, England United States * Lyndon, Illinois * Lyndon, Kansas * Lyndon, Kentucky * Lyndon, New York * Lyndon, Ohio * Lyndon, Pennsylvania * Lyndon, Vermont * Lyndon, Sheboygan County, Wisconsin Lyndon is a town in Sheboygan County, Wisconsin. The population was 1,468 at the time of the 2000 census. It is included in the Sheboygan, Wisconsin Metropolitan Statistical Area. The ghost town of Winooski was located in the town. Geography Acco ..., a town * Lyndon, Juneau County, Wisconsin, a town Other uses * Lyndon State College, a public college located in Lyndonville, Vermont People * Lyndon (name), given name and surname See also * Lyndon School (other) * Lyndon Township (other) * * Lydon (other) * Lynden (other) * Lindon (other) * Linden (other) {{disambig, geo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Houston, Texas
Houston (; ) is the most populous city in Texas, the most populous city in the Southern United States, the fourth-most populous city in the United States, and the sixth-most populous city in North America, with a population of 2,304,580 in 2020. Located in Southeast Texas near Galveston Bay and the Gulf of Mexico, it is the seat and largest city of Harris County and the principal city of the Greater Houston metropolitan area, which is the fifth-most populous metropolitan statistical area in the United States and the second-most populous in Texas after Dallas–Fort Worth. Houston is the southeast anchor of the greater megaregion known as the Texas Triangle. Comprising a land area of , Houston is the ninth-most expansive city in the United States (including consolidated city-counties). It is the largest city in the United States by total area whose government is not consolidated with a county, parish, or borough. Though primarily in Harris County, small portions o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Historic Landmark
A National Historic Landmark (NHL) is a building, district, object, site, or structure that is officially recognized by the United States government for its outstanding historical significance. Only some 2,500 (~3%) of over 90,000 places listed on the country's National Register of Historic Places are recognized as National Historic Landmarks. A National Historic Landmark District may include contributing properties that are buildings, structures, sites or objects, and it may include non-contributing properties. Contributing properties may or may not also be separately listed. Creation of the program Prior to 1935, efforts to preserve cultural heritage of national importance were made by piecemeal efforts of the United States Congress. In 1935, Congress passed the Historic Sites Act, which authorized the Interior Secretary authority to formally record and organize historic properties, and to designate properties as having "national historical significance", and gave the Nati ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Airlock
An airlock, air-lock or air lock, often abbreviated to just lock, is a compartment with doors which can be sealed against pressure which permits the passage of people and objects between environments of differing pressure or atmospheric composition while minimizing the change of pressure in the adjoining spaces and mixing of environments. The lock consists of a relatively small chamber with two airtight doors in series which do not open simultaneously. An airlock may be used for passage between environments of different gases or different pressures, or both, to minimize pressure loss or prevent the gases from mixing. An airlock may also be used underwater to allow passage between an air environment in a pressure vessel and the water environment outside, in which case the airlock can contain air or water. This is called a floodable airlock or an underwater airlock, and is used to prevent water from entering a submersible vessel or an underwater habitat. Air-locks are used i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
James Webb Space Telescope
The James Webb Space Telescope (JWST) is a space telescope which conducts infrared astronomy. As the largest optical telescope in space, its high resolution and sensitivity allow it to view objects too old, distant, or faint for the Hubble Space Telescope. This will enable investigations across many fields of astronomy and cosmology, such as observation of the first stars, the formation of the first galaxies, and detailed atmospheric characterization of potentially habitable exoplanets. The U.S. National Aeronautics and Space Administration (NASA) led JWST's design and development and partnered with two main agencies: the European Space Agency (ESA) and the Canadian Space Agency (CSA). The NASA Goddard Space Flight Center (GSFC) in Maryland managed telescope development, the Space Telescope Science Institute in Baltimore on the Homewood Campus of Johns Hopkins University operates JWST, and the prime contractor was Northrop Grumman. The telescope is named after Jame ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Apollo/Skylab A7L
The Apollo/Skylab space suit is a class of space suits used in Apollo and Skylab missions. The names for both the Apollo and Skylab space suits were Extravehicular Mobility Unit (EMU). The Apollo EMUs consisted of a Pressure Suit Assembly (PSA) aka "suit" and a Portable Life Support System (PLSS) that was more commonly called the "backpack". The A7L was the PSA model used on the Apollo 7 through 14 missions. The subsequent Apollo 15-17 lunar missions, Skylab, and Apollo–Soyuz used A7LB pressure suits. Additionally, these pressure suits varied by program usage. For the Skylab EMU, NASA elected to use an umbilical life support system named the Astronaut Life Support Assembly. Basic design The base Apollo EMU design took over three years to produce. At the beginning of the Apollo program, the Apollo spacesuit had not yet received its final EMU NASA held a competition for the Apollo SSA contract in March 1962. Each competition proposal had to demonstrate all the abilit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
TransHab
TransHab was a concept pursued by NASA in the 1990s to develop the technology for expandable habitats inflated by air in space. Specifically, TransHab was intended as a replacement for the already existing rigid International Space Station crew Habitation Module. When deflated, inflatable modules provide an 'easier to launch' compact form. When fully inflated, TransHab would expand to in diameter (compare to the diameter of the Columbus ISS Module). History The name of the project is a contraction of ''Transit Habitat'' reflecting the original intention to design an interplanetary vehicle to transfer humans to Mars. Considerable controversy arose during the TransHab development effort due to delays and increased costs of the ISS program. In 1999, the National Space Society issued a policy statement recommending that NASA continue R&D of inflatable technologies while ceasing development of a TransHab ISS module. Finally in 2000, despite objections from the White House, House ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of National Historic Landmarks In Texas
This is a List of National Historic Landmarks in Texas and other landmarks of equivalent landmark status in the state. The United States' National Historic Landmark (NHL) program is operated under the auspices of the National Park Service, and recognizes structures, districts, objects, and similar resources according to a list of criteria of national significance. There are 49 current and one former NHLs in Texas.. Current National Historic Landmarks in Texas The landmarks in Texas are distributed across 29 of the 254 counties in the state. Nine of the sites are in Bexar County. ;Key ;Notes Former National Historic Landmark in Texas See also * List of National Historic Landmarks by state *National Register of Historic Places listings in Texas * History of Texas *List of areas in the United States National Park System * List of National Natural Landmarks in Texas References External links *National Historic La ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Register Of Historic Places Listings In Harris County, Texas
__NOTOC__ This is a list of the National Register of Historic Places in Harris County, Texas. It is intended to be a complete list of properties and districts listed on the National Register of Historic Places in Harris County, Texas, United States. Number of listings by area The properties are distributed across Harris County. There is a concentration in "Downtown Houston", defined as the area enclosed by Interstate 10, Interstate 45, and Interstate 69. More than 100 are in the "Houston Heights" neighborhood whose borders are, approximately, Highway I-10 on the South, I-610 on the North, 45 on the East and Durham on the West. The "inner Harris County" area is defined as the rest of the area within the Interstate 610 loop; "outer Harris County" is defined as the rest of Harris County. There are no listings at all in a few of Houston's exclaves, which extend even beyond the Harris County borders. See also *List of National Historic Landmarks in Texas *National Registe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Buildings And Structures In Houston
A building, or edifice, is an enclosed structure with a roof and walls standing more or less permanently in one place, such as a house or factory (although there's also portable buildings). Buildings come in a variety of sizes, shapes, and functions, and have been adapted throughout history for a wide number of factors, from building materials available, to weather conditions, land prices, ground conditions, specific uses, prestige, and aesthetic reasons. To better understand the term ''building'' compare the list of nonbuilding structures. Buildings serve several societal needs – primarily as shelter from weather, security, living space, privacy, to store belongings, and to comfortably live and work. A building as a shelter represents a physical division of the human habitat (a place of comfort and safety) and the ''outside'' (a place that at times may be harsh and harmful). Ever since the first cave paintings, buildings have also become objects or canvasses of much artist ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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