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NASA X-57 Maxwell
The NASA X-57 Maxwell is an experimental aircraft being developed by NASA, intended to demonstrate technology to reduce fuel use, emissions, and noise. The first flight of the X-57 is scheduled to take place in 2023. Development The experiment involves replacing the wings on a twin-engined Italian-built Tecnam P2006T (a conventional four-seater light aircraft) with distributed electric propulsion (DEP) wings each containing electrically driven propellers. Test flights were initially planned to commence in 2017. The first test phase uses an 18-engine truck-mounted wing. The second phase will install the cruise propellers and motors on a standard P2006T for ground- and flight-test experience. Phase 3 tests will involve the high-lift DEP wing and demonstrate increased high-speed cruise efficiency. The leading-edge nacelles will be fitted, but the high-lift propellers, motors and controllers will not be installed. Phase 4 adds the DEP motors and folding propellers to demonstrate l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Experimental Aircraft
An experimental aircraft is an aircraft intended for testing new aerospace technologies and design concepts. The term ''research aircraft'' or ''testbed aircraft'', by contrast, generally denotes aircraft modified to perform scientific studies, such as weather research or geophysical surveying, similar to a research vessel. United States The term "experimental aircraft" also has specific legal meaning in Australia, the United States and some other countries; usually used to refer to aircraft flown with an experimental certificate. In the United States, this also includes most homebuilt aircraft, many of which are based on conventional designs and hence are experimental only in name because of certain restrictions in operation. US Federal Aviation Administration. Retrieved 2018-01 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carbon Composite
Carbon fiber-reinforced polymers (American English), carbon-fibre-reinforced polymers (Commonwealth English), carbon-fiber-reinforced plastics, carbon-fiber reinforced-thermoplastic (CFRP, CRP, CFRTP), also known as carbon fiber, carbon composite, or just carbon, are extremely strong and light fiber-reinforced plastics that contain carbon fibers. CFRPs can be expensive to produce, but are commonly used wherever high strength-to-weight ratio and stiffness (rigidity) are required, such as aerospace, superstructures of ships, automotive, civil engineering, sports equipment, and an increasing number of consumer and technical applications. The binding polymer is often a thermoset resin such as epoxy, but other thermoset or thermoplastic polymers, such as polyester, vinyl ester, or nylon, are sometimes used. The properties of the final CFRP product can be affected by the type of additives introduced to the binding matrix (resin). The most common additive is silica, but other additi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Inverse
Inverse or invert may refer to: Science and mathematics * Inverse (logic), a type of conditional sentence which is an immediate inference made from another conditional sentence * Additive inverse (negation), the inverse of a number that, when added to the original number, yields zero * Compositional inverse, a function that "reverses" another function * Inverse element * Inverse function, a function that "reverses" another function **Generalized inverse, a matrix that has some properties of the inverse matrix but not necessarily all of them * Multiplicative inverse (reciprocal), a number which when multiplied by a given number yields the multiplicative identity, 1 ** Inverse matrix of an Invertible matrix Other uses * Invert level, the base interior level of a pipe, trench or tunnel * ''Inverse'' (website), an online magazine * An outdated term for an LGBT person; see Sexual inversion (sexology) See also * Inversion (other) * Inverter (other) * Opposite (disa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
GeekWire
GeekWire is an American technology news website that covers startups and established technology companies. The site launched in March 2011 and is based in Seattle. It was founded by journalists Todd Bishop and John Cook with investment from Jonathan Sposato. GeekWire founders John Cook and Todd Bishop were former technology reporters at the Seattle Post-Intelligencer and the Puget Sound Business Journal. Bishop and Cook joined the Puget Sound Business Journal to create TechFlash in September 2008, leaving to start GeekWire on March 7, 2011. GeekWire is regularly featured on the Techmeme Techmeme is a technology news aggregator. The website has been described as "a one-page, aggregated, filtered, archiveable summary in near real-time of what is new and generating conversation". Overview Gabe Rivera was a compiler software engin ... leaderboard as one of the sources most frequently posted to that site. References External links * American technology news websites Intern ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Armstrong Flight Research Center
The NASA Neil A. Armstrong Flight Research Center (AFRC) is an aeronautical research center operated by NASA. Its primary campus is located inside Edwards Air Force Base in California and is considered NASA's premier site for aeronautical research. AFRC operates some of the most advanced aircraft in the world and is known for many aviation firsts, including critical support for the first crewed airplane to exceed the speed of sound in level flight with the Bell X-1, highest speed ever recorded by a crewed, powered aircraft (North American X-15), the first pure digital fly-by-wire aircraft (F-8 DFBW), and many others. AFRC also operates a second site in Palmdale, Ca. known as Building 703, once the former Rockwell International/ North American Aviation production facility, next to Air Force Plant 42. There, AFRC houses and operates several of NASA's Science Mission Directorate aircraft including SOFIA (Stratospheric Observatory For Infrared Astronomy), a DC-8 Flying Laboratory ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
James Clerk Maxwell
James Clerk Maxwell (13 June 1831 – 5 November 1879) was a Scottish mathematician and scientist responsible for the classical theory of electromagnetic radiation, which was the first theory to describe electricity, magnetism and light as different manifestations of the same phenomenon. Maxwell's equations for electromagnetism have been called the " second great unification in physics" where the first one had been realised by Isaac Newton. With the publication of "A Dynamical Theory of the Electromagnetic Field" in 1865, Maxwell demonstrated that electric and magnetic fields travel through space as waves moving at the speed of light. He proposed that light is an undulation in the same medium that is the cause of electric and magnetic phenomena. (This article accompanied an 8 December 1864 presentation by Maxwell to the Royal Society. His statement that "light and magnetism are affections of the same substance" is at page 499.) The unification of light and electrical ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
American Institute Of Aeronautics And Astronautics
The American Institute of Aeronautics and Astronautics (AIAA) is a professional society for the field of aerospace engineering. The AIAA is the U.S. representative on the International Astronautical Federation and the International Council of the Aeronautical Sciences. In 2015, it had more than 30,000 members among aerospace professionals worldwide (a majority are American and/or live in the United States). History The AIAA was founded in 1963 from the merger of two earlier societies: the American Rocket Society (ARS), founded in 1930 as the American Interplanetary Society (AIS), and the Institute of the Aerospace Sciences (IAS), founded in 1932 as the Institute of the Aeronautical Sciences. Paul Johnston was the first executive director of the organization. Jim Harford took his seat after 18 months. The newly-formed structure gathered 47 technical committees and one broad technical publication, the ''AIAA Journal''. The ''AIAA Student Journal'' was also launched in 1963. T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Charles Bolden
Charles Frank Bolden Jr. (born August 19, 1946) is a former Administrator of NASA, a retired United States Marine Corps Major General, and a former astronaut who flew on four Space Shuttle missions. He graduated from the United States Naval Academy with the class of 1968. Bolden became a Marine aviator and test pilot. After his service as an astronaut, he became Deputy Commandant of Midshipmen at the Naval Academy. On May 23, 2009, President Barack Obama announced the nomination of Bolden as Administrator of NASA and Lori Garver as deputy NASA administrator."Retired General Picked to Lead NASA" by Kenneth Chang, '''' May 24, 2009< ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Administrators And Deputy Administrators Of NASA
The Administrator of the National Aeronautics and Space Administration is the highest-ranking official of NASA, the national List of space agencies, space agency of the United States. The administrator is NASA's chief decision maker, responsible for providing clarity to the agency's vision and serving as a source of internal leadership within NASA. The office holder also has an important place within Space policy of the United States, United States space policy, and is assisted by Deputy Administrator of NASA, a deputy administrator. The administrator is appointed by the president of the United States, with the advice and consent of the United States Senate, and thereafter serves at the president’s pleasure. Former senator and astronaut Bill Nelson has served as the administrator since May 3, 2021. Duties and responsibilities The administrator serves as NASA's chief executive officer, accountable to the President for the leadership necessary to achieve the agency's mission. Thi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Transformative Aeronautics Concepts
In United States copyright law, transformative use or transformation is a type of fair use that builds on a copyrighted work in a different manner or for a different purpose from the original, and thus does not infringe its holder's copyright. Transformation is an important issue in deciding whether a use meets the first factor of the fair-use test, and is generally critical for determining whether a use is in fact fair, although no one factor is dispositive. Transformativeness is a characteristic of such derivative works that makes them transcend, or place in a new light, the underlying works on which they are based. In computer- and Internet-related works, the transformative characteristic of the later work is often that it provides the public with a benefit not previously available to it, which would otherwise remain unavailable. Such transformativeness weighs heavily in a fair use analysis and may excuse what seems a clear copyright infringement from liability. In United Stat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
X-plane
The X-planes are a series of experimental United States aircraft and rockets, used to test and evaluate new technologies and aerodynamic concepts. They have an X designator within the US system of aircraft designations, which denotes the experimental research mission. Not all US experimental aircraft have been designated as X-planes; some received US Navy designations before 1962, while others have been known only by manufacturers' designations, non-'X'-series designations, or classified codenames. This list only includes the designated X-planes. History The X-planes concept officially came into being in 1944, as a joint programme between the National Advisory Committee for Aeronautics (NACA), the US Navy (USN) and the US Army Air Force (USAAF), in order to pursue research into high-speed aircraft. NACA later became the National Aeronautics and Space Administration (NASA) and the USAAF became the United States Air Force (USAF). Other organizations such as the Defence Advanced ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
