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A quasi-ordinal knowledge space is a knowledge space that is also closed under set intersection: if student a knows topics A and B; and student c knows topics B and C; then it is possible for another student b to know only topic B. A well-graded knowledge space or learning space is a knowledge space satisfying the following axiom:
Space launch market competition is the manifestation of market forces in the launch service provider business. In particular it is the trend of competitive dynamics among payload transport capabilities at diverse prices having a greater influence on launch purchasing than the traditional political considerations of country of manufacture or the national entity using, regulating or licensing ...
CSSWE. Colorado Student Space Weather Experiment ( CSSWE) was the sixth [when?] National Science Foundation sponsored CubeSat mission. [3] [4] It was built by students at the University of Colorado at Boulder with advising from professionals at the Laboratory for Atmospheric and Space Physics. The CSSWE mission was a joint effort by the ...
NASA 's Exploration Ground Systems ( EGS) Program is one of three programs based at NASA's Kennedy Space Center in Florida. EGS was established to develop and operate the systems and facilities necessary to process and launch rockets and spacecraft during assembly, transport and launch. [1] EGS is preparing the infrastructure to support NASA's ...
The 4th Space Launch Squadron was the Air Force's Evolved Expendable Launch Vehicle (EELV) launch agency for the West Coast. The EELV system is a liquid-fueled first stage Common Booster Core (CBC) that can be used alone, with strap-on solid fuel rocket boosters, or as a configuration of three CBCs acting as a more powerful booster.
Affinity space. An affinity space is a place where learning happens. According to James Paul Gee, affinity spaces are locations where groups of people are drawn together because of a shared, strong interest or engagement in a common activity. [1] [page needed] [2] [page needed] Often but not always [3] occurring online, affinity spaces ...
Contents. List of spaceflight launches in July–December 2023. This article lists orbital and suborbital launches planned for the second half of the year 2023, including launches planned for 2023 without a specific launch date. For all other spaceflight activities, see 2023 in spaceflight. For launches in the first half of 2023, see List of ...
March 7, 2014. Retrieved July 2, 2015. ^ a b "Sea level Raptor's vacuum Isp is ~350 sec, but ~380 sec with larger vacuum-optimized nozzle". September 9, 2019. ^ a b c "Hopefully, higher thrust. Long term goal is 330 tF". April 6, 2024. ^ a b "Raptor V3 just achieved 350 bar chamber pressure (269 tons of thrust).