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average specific gravity

См. также в других словарях:

  • Specific impulse — (usually abbreviated I sp) is a way to describe the efficiency of rocket and jet engines. It represents the impulse (change in momentum) per unit of propellant. The higher the specific impulse, the less propellant is needed to gain a given amount …   Wikipedia

  • Specific orbital energy — In the gravitational two body problem, the specific orbital energy (or vis viva energy) of two orbiting bodies is the constant sum of their mutual potential energy ( ) and their total kinetic energy ( ), divided by the reduced mass. According to… …   Wikipedia

  • Gravity tractor — A Gravity tractor (GT) is a spacecraft that deflects another object in space, typically a potentially hazardous asteroid that might impact Earth, without physically contacting it, using only its gravitational field to transmit the required… …   Wikipedia

  • Earth Sciences — ▪ 2009 Introduction Geology and Geochemistry       The theme of the 33rd International Geological Congress, which was held in Norway in August 2008, was “Earth System Science: Foundation for Sustainable Development.” It was attended by nearly… …   Universalium

  • Serpentine group — The serpentine group describes a group of common rock forming hydrous magnesium iron phyllosilicate ((magnesium, iron)3silicon|2oxygen|5hydroxide|4) minerals; they may contain minor amounts of other elements including chromium, manganese, cobalt… …   Wikipedia

  • Ahmad Rafique — Akhtar (born April 15, 1941) is a notable Islamic scholar and sufi from Pakistan. A graduate of Government College, Lahore, he has been associated with teaching for years. Finally, he resolved to his small crockery shop in Gujar Khan, near… …   Wikipedia

  • Nsutite — is a manganese oxide mineral with formula: (Mn4+1 xMn2+xO2 2x(OH)2x where x = 0.06 0.07).[1] It is found in most large manganese deposits and was first discovered in Nsuta, Ghana. Since then, it has been found worldwide. Nsutite is a dull mineral …   Wikipedia

  • Bathyscaphe Trieste — Career (Italy) Name …   Wikipedia

  • Andersonite — Andersonite, Andersonit or Andersonita (Na2CaUO2(CO3)3 6H2O), or hydrated sodium calcium uranyl carbonate is a rare uranium carbonate mineral that was only described in the last half century. Named for Charles Alfred Anderson (1902 1990) of… …   Wikipedia

  • analysis — /euh nal euh sis/, n., pl. analyses / seez /. 1. the separating of any material or abstract entity into its constituent elements (opposed to synthesis). 2. this process as a method of studying the nature of something or of determining its… …   Universalium

  • Kilogram — Kg redirects here. For other uses, see Kg (disambiguation). Kilogram A computer generated image of the international prototype kilogram (IPK). The IPK is the kilogram. The IPK, which is roughly the size of a golf ball, sits here alongside a ruler …   Wikipedia

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