|
Lunar Lander Challenge
The Northrop Grumman Lunar Lander Challenge (NG-LLC) was a competition funded by NASA's Centennial Challenges program. The competition offered a series of prizes for teams that launch a vertical takeoff/vertical landing (VTVL) rocket that achieved the total delta-v needed for a vehicle to move between the surface of the Moon and its orbit. The multi-level competition was conducted by the X PRIZE Foundation, with sponsorship from the Northrop Grumman Corporation who ran the ongoing competition. The prize purses were paid by NASA. It was held annually at the X PRIZE Cup, making its debut at the 2006 Wirefly X PRIZE Cup in October, 2006, until 2009 when the prize purse was awarded to Masten Space Systems and Armadillo Aerospace. Competition rules The competition is divided into two levels. Both levels require teams to demonstrate control of their vehicle by flying to an altitude of more than , flying laterally for , and landing on a pad. For level 1, this pad is a simple diam ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John Carmack
John D. Carmack II (born August 20, 1970) is an American computer programmer and video game developer. He co-founded the video game company id Software and was the lead programmer of its 1990s games ''Commander Keen'', ''Wolfenstein 3D'', ''Doom (1993 video game), Doom'', ''Quake (video game), Quake'', and their sequels. Carmack made innovations in 3D computer graphics, such as his Carmack's Reverse algorithm for shadow volumes. In 2013, he resigned from id Software to work full-time at Oculus VR as their Chief technology officer, CTO. In 2019, he reduced his role to Consulting CTO so he could allocate more time toward artificial general intelligence (AGI). In 2022, he left Oculus to work on his startup, Keen Technologies. Biography Early life Carmack was born in Shawnee Mission, Kansas, the son of local television news reporter Stan Carmack. He grew up in the Kansas City metropolitan area, where he became interested in computers at an early age. He attended Shawnee Mission Eas ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
McDonnell Douglas DC-X
The DC-X, short for Delta Clipper or Delta Clipper Experimental, was an uncrewed prototype of a reusable single-stage-to-orbit launch vehicle built by McDonnell Douglas in conjunction with the United States Department of Defense's Strategic Defense Initiative Organization (SDIO) from 1991 to 1993. Starting 1994 until 1995, testing continued through funding of the US civil space agency NASA. In 1996, the DC-X technology was completely transferred to NASA, which upgraded the design for improved performance to create the DC-XA. Background According to writer Jerry Pournelle: "DC-X was conceived in my living room and sold to National Space Council Chairman Dan Quayle by General Graham, Max Hunter and me." According to Max Hunter, however, he had tried hard to convince Lockheed Martin of the concept's value for several years before he retired. Hunter had written a paper in 1985 entitled "The Opportunity", detailing the concept of a Single-Stage-To-Orbit spacecraft built with low- ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blue Origin New Shepard
New Shepard is a fully reusable suborbital launch vehicle developed by Blue Origin for space tourism. The vehicle is named after Alan Shepard, the first American astronaut in space. The vehicle is capable of vertical takeoff and vertical landing, and can carry a crew. The first uncrewed test flight of the New Shepard vehicle was in 2015. Blue Origin began testing prototype engines and vehicles in 2006 and completed full-scale engine development in 2015. Testing continued in 2016 and 2017, and Blue Origin planned its first crewed test flight for 2018, but it was delayed until 2021. As of 4 August 2022, New Shepard has flown 32 passengers into space. Tickets for commercial flights began to be sold on May 5, 2021, for flights carrying up to six people. New Shepard is a one-stage rocket consisting of a crew capsule and a booster rocket. The capsule can seat six passengers. The booster rocket, powered by a BE-3 liquid hydrogen and liquid oxygen engine, propels the capsule to an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blue Origin
Blue Origin, LLC is an American private spaceflight, privately funded aerospace manufacturer and sub-orbital spaceflight services company headquartered in Kent, Washington. Founded in 2000 by Jeff Bezos, the founder and executive chairman of Amazon (company), Amazon, the company is led by CEO Bob Smith and aims to make access to space cheaper and more reliable through reusable launch vehicles. Rob Meyerson led Blue Origin from 2003 to 2017 and served as its first president. Blue Origin is employing an incremental approach from suborbital to orbital flight, with each developmental step building on its prior work. The company's name refers to the blue planet, Earth, as the point of origin. Blue Origin develops orbital technology, rocket-powered VTVL, vertical takeoff and vertical landing (VTVL) vehicles for access to sub-orbital spaceflight, suborbital and orbital spaceflight, orbital outer space, space. Initially focused on suborbital spaceflight, the company has designed, built ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SpeedUp
In computer architecture, speedup is a number that measures the relative performance of two systems processing the same problem. More technically, it is the improvement in speed of execution of a task executed on two similar architectures with different resources. The notion of speedup was established by Amdahl's law, which was particularly focused on parallel processing. However, speedup can be used more generally to show the effect on performance after any resource enhancement. Definitions Speedup can be defined for two different types of quantities: '' latency'' and ''throughput''. ''Latency'' of an architecture is the reciprocal of the execution speed of a task: : L = \frac = \frac, where * ''v'' is the execution speed of the task; * ''T'' is the execution time of the task; * ''W'' is the execution workload of the task. ''Throughput'' of an architecture is the execution rate of a task: : Q = \rho vA = \frac = \frac, where * ''ρ'' is the execution density (e.g., the number ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Unreasonable Rocket
Reason is the capacity of consciously applying logic by drawing conclusions from new or existing information, with the aim of seeking the truth. It is closely associated with such characteristically human activities as philosophy, science, language, mathematics, and art, and is normally considered to be a distinguishing ability possessed by humans. Reason is sometimes referred to as rationality. Reasoning is associated with the acts of thinking and cognition, and involves the use of one's intellect. The field of logic studies the ways in which humans can use formal reasoning to produce logically valid arguments. Reasoning may be subdivided into forms of logical reasoning, such as: deductive reasoning, inductive reasoning, and abductive reasoning. Aristotle drew a distinction between logical discursive reasoning (reason proper), and intuitive reasoning, in which the reasoning process through intuition—however valid—may tend toward the personal and the subjectively ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Team Phoenicia
A team is a group of individuals (human or non-human) working together to achieve their goal. As defined by Professor Leigh Thompson of the Kellogg School of Management, " team is a group of people who are interdependent with respect to information, resources, knowledge and skills and who seek to combine their efforts to achieve a common goal". A group does not necessarily constitute a team. Teams normally have members with complementary skills and generate synergy through a coordinated effort which allows each member to maximize their strengths and minimize their weaknesses. Naresh Jain (2009) claims: Team members need to learn how to help one another, help other team members realize their true potential, and create an environment that allows everyone to go beyond their limitations. While academic research on teams and teamwork has grown consistently and has shown a sharp increase over the past recent 40 years, the societal diffusion of teams and teamwork actually foll ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cantil, California
Cantil (Spanish for "Stone Cliff") is an unincorporated community in Kern County, California. It is in the Fremont Valley of the western Mojave Desert. Geography It is located on California State Route 14, between Mojave and Red Rock Canyon. It is at an elevation of , southwest of Saltdale. Its zip code is 93519, and it uses area codes 442 and 760. The Red Rock Elementary School and Red Rock Community Day School are in Cantil. Both help students who were not successful in the regular school system. History Cantil was founded as a station on the Nevada and California Railroad in 1908 or 1909 when the line was extended from Owens Lake to Mojave. The name is Spanish for "stone cliff" or "steep rock", and is one of a series of "C" names chosen for this section of the line including Cambio, Cinco, and Ceneda. The first post office opened in 1916. Parts of scenes of Universal's 1932 horror film '' The Mummy'' were filmed here. Cantil is near the home of the Honda Provi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mojave Air & Space Port
The Mojave Air and Space Port at Rutan Field is in Mojave, California, United States, at an elevation of . It is the first facility to be licensed in the United States for horizontal launches of reusable spacecraft, being certified as a spaceport by the Federal Aviation Administration on June 17, 2004. The facility covers 2,998 acres (1,213 ha) and has three runways. History In 1935, Kern County opened the Mojave Airport east of Mojave, California to serve the gold and silver mining industry in the area. The airport had two dirt runways, one oiled, but no fueling or servicing facilities. In 1941, the Civil Aeronautics Board began improvements to the airport for national defense purposes that included two asphalt runways and a taxiway. Kern County agreed the airport could be taken over by the military in the event of war. After the Japanese attack on Pearl Harbor in December 1941, the United States Marine Corps took over the airport and expanded it into Marine Corps Auxil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
