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LEAPTech
The NASA X-57 Maxwell was an experimental aircraft developed by NASA, intended to demonstrate technology to reduce fuel use, emissions, and noise. The first flight of the X-57 was scheduled to take place in 2023, but the program was cancelled due to problems with the propulsion system. Development The experiment involved 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 used an 18-engine truck-mounted wing. The second phase installed the cruise propellers and motors on a standard P2006T for ground- and flight-test experience. Phase 3 tests were to involve the high-lift DEP wing and demonstrate increased high-speed cruise efficiency. The leading-edge nacelles would be fitted, but the high-lift propellers, motors and controllers would not be ins ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Joby Aviation
Joby Aviation is a United States venture-backed aviation company, developing an electric vertical takeoff and landing (eVTOL) aircraft that it intends to operate as an air taxi service. Joby Aviation is headquartered in Santa Cruz, California, and has offices in San Carlos, California; Marina, California; and Munich, Germany. History Beginnings Joby Aviation was founded as Joby Aero on September 11, 2009 as one of several projects incubated by JoeBen Bevirt on his ranch in the Santa Cruz Mountains, using the proceeds from successful exits of previous companies. According to the company's website, the early years were spent exploring different components of electric aviation, including electric motors, flight software, and lithium-ion batteries. This research led Joby to participate in the NASA X-57 Maxwell and LEAPTech projects, before developing its own air taxi concept. Joby's early concept, publicly called the S2, had eight tilting propellers arrayed along the leading ... [...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. 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 2018-01-12 < ... [...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 addi ... [...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, 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 (disambiguation ... [...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 The ''Seattle Post-Intelligencer'' (popularly known as the ''Seattle P-I'', the ''Post-Intelligencer'', or simply the ''P-I'') is an online newspaper and former print newspaper based in Seattle, Washington (state), Washington, United States. Th ...'' 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 leaderboard as one of the sources most frequently posted to that site. References External links * American technology news ... [...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 supporting the first crewed airplane to exceed the speed of sound in level flight (Bell X-1), highest speed by a crewed, powered aircraft (North American X-15), the first pure digital fly-by-wire aircraft (F-8 DFBW), and many others. AFRC operated a second site next to Air Force Plant 42 in Palmdale, California, known as Building 703, once the former Rockwell International/North American Aviation production facility. There, AFRC housed and operated several of NASA's Science Mission Directorate aircraft including SOFIA (Stratospheric Observatory For Infrared Astronomy), a DC-8 Flying Laboratory, a Gulfstream C-20A UAVSAR and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
James Clerk Maxwell
James Clerk Maxwell (13 June 1831 – 5 November 1879) was a Scottish physicist and mathematician who was 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 achieved the Unification (physics)#Unification of magnetism, electricity, light and related radiation, second great unification in physics, where Unification (physics)#Unification of gravity and astronomy, the first one had been realised by Isaac Newton. Maxwell was also key in the creation of statistical mechanics. With the publication of "A Dynamical Theory of the Electromagnetic Field" in 1865, Maxwell demonstrated that electric force, 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. (Th ... [...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 Aerospace engineering is the primary field of engineering concerned with the development of aircraft and spacecraft. It has two major and overlapping branches: aeronautical engineering and astronautical engineering. Avionics engineering is s .... 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 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 ... [...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, 20 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Administrators And Deputy Administrators Of NASA
A list is a set of discrete items of information collected and set forth in some format for utility, entertainment, or other purposes. A list may be memorialized in any number of ways, including existing only in the mind of the list-maker, but lists are frequently written down on paper, or maintained electronically. Lists are "most frequently a tool", and "one does not ''read'' but only ''uses'' a list: one looks up the relevant information in it, but usually does not need to deal with it as a whole". Lucie Doležalová,The Potential and Limitations of Studying Lists, in Lucie Doležalová, ed., ''The Charm of a List: From the Sumerians to Computerised Data Processing'' (2009). Purpose It has been observed that, with a few exceptions, "the scholarship on lists remains fragmented". David Wallechinsky, a co-author of '' The Book of Lists'', described the attraction of lists as being "because we live in an era of overstimulation, especially in terms of information, and lists help ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nad Graphic Letternasa
NAD or Nad may refer to: Geography * Nad, County Cork, a village in Ireland * North American Datum, a series of geographic coordinate systems * North Atlantic Drift, an Atlantic Ocean current * Hobli, a subdivision of a taluka in southern India Organizations * National Academy of Design * NAD Electronics, a Canadian audio equipment manufacturer (originally New Acoustic Dimension) * National Advertising Division, the Council of Better Business Bureaus in the United States and Canada * National Appeals Division, an agency within the United States Department of Agriculture * National Association of the Deaf (other), one of several associations for deaf people * Norwegian Association of the Disabled Science, medicine and technology * Na D, a spectroscopic line due to sodium * Network Access Device, a device in mobile phones that finds the shortest route for a connection * Nicotinamide adenine dinucleotide Nicotinamide adenine dinucleotide (NAD) is a Cofactor ... [...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] |
