center-of-gravity travel

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• center-of-gravity travel — The fore and aft movement of the center of gravity in the course of flight as a result of the consumption of fuel and the release of armaments and other stores. See center of gravity envelope …   Aviation dictionary

• Center of population — with a mean distance of convert|5000|km|sigfig=1|sp=us. Its antipodal point is correspondingly the farthest point from everyone on earth, and is located in the South Pacific near 15000|km|sp=us.In demographics, the center of population of a… …   Wikipedia

• center of pressure — An aerodynamically determined point at which wind force on the side of a vehicle is assumed to be concentrated for analytical purposes. It is a function of the shape and aerodynamic drag (resistance) of an automobile s body shell, determines the… …   Dictionary of automotive terms

• Travel to the Earth's center — Travel to the Earth s center, though not currently considered scientifically possible, is a popular theme in science fiction. Some subterranean fiction involves travel to the Earth s center, either finding a Hollow Earth or the Earth s molten… …   Wikipedia

• Gravity (company) — Infobox Company company name = GRAVITY Co., Ltd. company company slogan = company type = Public (nasdaq|GRVY) foundation = April 2000 location = Seoul, Republic of Korea key people = Ryu, Il Young, Chairman CEO Baik, Seungtaik, COO Lee, Jonathan… …   Wikipedia

• Gravity model of migration — The Gravity model of migration, which is derived from Newton s law of gravity, is used to predict the degree of interaction between two places. Newton s law states that: Any two bodies attract one another with a force that is proportional to the… …   Wikipedia

• Time travel — This article details time travel itself. For other uses, see Time Traveler. Time travel is the concept of moving between different moments in time in a manner analogous to moving between different points in space, either sending objects (or in… …   Wikipedia

• Artificial gravity — is a simulation of gravity in outer space or free fall. Artificial gravity is desirable for long term space travel for ease of mobility and to avoid the adverse health effects of weightlessness.MethodsArtificial gravity could be created in… …   Wikipedia

• Interstellar travel — Montage of fusion powered rocket concepts from 1987–2004, which could form the basis for an interstellar vehicle. Included are: VISTA (Lawrence Livermore National Laboratories,1987), Discovery II (NASA/GRC, 2002), Human Outer Planet Exploration… …   Wikipedia

• United States gravity control propulsion research (1955 - 1974) — American interest in gravity control propulsion research intensified during the early 1950s. Literature from that period used the terms anti gravity, anti gravitation, baricentric, counterbary, electrogravitics, G projects, gravitics, gravity… …   Wikipedia

• Anti-gravity — Antigrav redirects here. For the EyeToy video game, see EyeToy: AntiGrav. Anti gravity is the idea of creating a place or object that is free from the force of gravity. It does not refer to the lack of weight under gravity experienced in free… …   Wikipedia