effective radius of the earth

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• Cloud drop effective radius — The cloud drop effective radius (alternatively cloud effective radius or effective radius) is a weighted mean of the size distribution of cloud droplets.[1] The term was defined in 1974 by James E. Hansen and Larry Travis as the ratio of the… …   Wikipedia

• Earth's gravity — Earth s gravity, denoted by g , refers to the gravitational attraction that the Earth exerts on objects on or near its surface. Its strength is usually quoted in terms of the acceleration it gives to falling bodies (acceleration due to gravity),… …   Wikipedia

• Earth radius — The Earth s shape, like that of all major planets, approximates a sphere. A true sphere has a unique radius, but on Earth the distance from the mean sea level at each point on the surface to the center (the radius of the Earth at a point on the… …   Wikipedia

• History of the Earth — For the history of modern humans, see History of the world. Geological time put in a diagram called a geological clock, showing the relative lengths of the eons of the Earth s history The history of the Earth describes the most important events… …   Wikipedia

• Earth sheltering — is the architectural practice of using earth against building walls for external thermal mass, to reduce heat loss, and to easily maintain a steady indoor air temperature. Earth sheltering is popular in modern times among advocates of passive… …   Wikipedia

• Effective Earth radius — In telecommunication, effective Earth radius is the radius of a hypothetical Earth for which the distance to the radio horizon, assuming rectilinear propagation, is the same as that for the actual Earth with an assumed uniform vertical gradient… …   Wikipedia

• Earth & Beyond — Infobox VG title = Earth Beyond developer = Westwood Studios publisher = Electronic Arts distributor = Electronic Arts designer = engine = version = released = September 24, 2002 genre = MMORPG modes = Multiplayer ratings = ESRB: Teen (13+) ELSPA …   Wikipedia

• Earth technology in Stargate — In the Stargate fictional universe, the humans of Earth have developed many advanced technologies based on what SG teams have brought back from trips to other planets through the Stargate. Earth has also benefitted from technical knowledge… …   Wikipedia

• Trucking industry in the United States — The trucking industry (also referred to as the transportation or logistics industry) is the transport and distribution of commercial and industrial goods using commercial motor vehicles (CMV). In this case, CMVs are most often trucks; usually a… …   Wikipedia

• motion picture, history of the — Introduction       history of the medium from the 19th century to the present. Early years, 1830–1910 Origins       The illusion of motion pictures is based on the optical phenomena known as persistence of vision and the phi phenomenon. The first …   Universalium

• Aristotle the philosopher of nature — David Furley 1 THE TREATISES ON NATURE The subject matter of the present chapter is what Aristotle has to say about the natural world the subject that in classical Greek is most accurately rendered as ta physika. But of course this includes many… …   History of philosophy