docking axis
21Apollo 14 — Infobox Space mission mission name = Apollo 14 insignia = Apollo 14 insignia.png stats ref = cite web |url=http://history.nasa.gov/SP 4029/Apollo 00g Table of Contents.htm |title= Apollo by the Numbers: A Statistical Reference (SP 4029)… …
22Gemini 10 — Infobox Space mission mission name = Gemini 10 spacecraft name = Gemini 10 booster = Titan II #62 12565 insignia = Ge10Patch orig.png insignia size = 180px sign = Gemini 10 crew members = 2 launch pad = LC 19 (CCAF) launch = July 18, 1966,… …
23List of sex positions — This list of sex positions includes descriptions of various forms of sexual intercourse and other sexual acts between people. Sexual acts are generally described by the positions the participants take in order to perform those acts. Alfred Kinsey …
24Elliptic orbit — A small body in space orbits a large one (like a planet around the sun) along an elliptical path, with the large body being located at one of the ellipse foci …
25Saturn V Instrument Unit — The Saturn V Instrument Unit is a ring shaped structure fitted to the top of the Saturn V rocket s third stage (S IVB) and the Saturn IB s second stage (S IVB). It was immediately below the SLA (Spacecraft/Lunar Module Adapter) panels that… …
26Orbit of the Moon — Not to be confused with Lunar orbit in the sense of a selenocentric orbit, that is, an orbit around the Moon The Moon completes its orbit around the Earth in approximately 27.3 days (a sidereal month). The Earth and Moon orbit about their… …
27Orbit — This article is about orbits in celestial mechanics, due to gravity. For other uses, see Orbit (disambiguation). A satellite orbiting the Earth has a tangential velocity and an inward acceleration …
28Solar sail — Solar sails (also called light sails or photon sails, especially when they use light sources other than the Sun) are a proposed form of spacecraft propulsion using large membrane mirrors. Radiation pressure is about 10 5 Pa at Earth s distance… …
29X-ray crystallography — can locate every atom in a zeolite, an aluminosilicate with many important applications, such as water purification. X ray crystallography is a method of determining the arrangement of atoms within a crystal, in which a beam of X rays strikes a… …
30Apsis — For the architectural term, see Apse. Aphelion and Perihelion redirect here. For Edenbridge s Album, see Aphelion (album). Apogee and Perigee redirect here. For the literary journal, see Perigee: Publication for the Arts. For other uses, see… …
