relative escape
61Spacecraft propulsion — A remote camera captures a close up view of a Space Shuttle Main Engine during a test firing at the John C. Stennis Space Center in Hancock County, Mississippi Spacecraft propulsion is any method used to accelerate spacecraft and artificial… …
62Orders of magnitude (speed) — To help compare different orders of magnitude, the following list describes various speed levels between approximately 1×10−10 m/s and 3×108 m/s. Values in bold are exact. List of orders of magnitude for speed List of orders of… …
63Bec MacConn — Infobox character name = Bec MacConn caption = first = Bec last = MacConn creator = Darren Shan alias = Rebecca Kinga [cite book|last= Shan|first= Darren|authorlink= Darren Shan|title= Death s Shadow|publisher= Harper Collins|date= 2008|pages=… …
64animal behaviour — Introduction any activity of an intact organism. A living animal behaves constantly in order to survive, and all animals must solve the same basic problems. They must, for instance, periodically replace their energy source (consume… …
65biblical literature — Introduction four bodies of written works: the Old Testament writings according to the Hebrew canon; intertestamental works, including the Old Testament Apocrypha; the New Testament writings; and the New Testament Apocrypha. The Old… …
66Orbital resonance — For the science fiction novel by John Barnes, see Orbital Resonance (novel). In celestial mechanics, an orbital resonance occurs when two orbiting bodies exert a regular, periodic gravitational influence on each other, usually due to their… …
67United States Constitution — P …
68Anthropology and Archaeology — ▪ 2009 Introduction Anthropology Among the key developments in 2008 in the field of physical anthropology was the discovery by a large interdisciplinary team of Spanish and American scientists in northern Spain of a partial mandible (lower… …
69Beta Israel — ביתא ישראל Shlomo Molla …
70Delta-v budget — (or velocity change budget) is an astrogation term used in astrodynamics and aerospace industry for total delta v (or total velocity change) requirements for the various propulsive tasks and orbital maneuvers over phases of a space mission.… …
