inversion-rotational axis

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• Inversion in a point — In Euclidean geometry, the inversion of a point X in respect to a point P is a point X * such that P is the midpoint of the line segment with endpoints X and X *. In other words, the vector from X to P is the same as the vector from P to X *.The… …   Wikipedia

• Symmetry — For other uses, see Symmetry (disambiguation) …   Wikipedia

• Molecular symmetry — in chemistry describes the symmetry present in molecules and the classification of molecules according to their symmetry. Molecular symmetry is a fundamental concept in chemistry, as it can predict or explain many of a molecule s chemical… …   Wikipedia

• Jupiter — /jooh pi teuhr/, n. 1. Also called Jove. the supreme deity of the ancient Romans: the god of the heavens and of weather. Cf. Zeus. 2. Astron. the planet fifth in order from the sun, having an equatorial diameter of 88,729 mi. (142,796 km), a mean …   Universalium

• Post-glacial rebound — A model of present day mass change due to post glacial rebound and the reloading of the ocean basins with seawater. Blue and purple areas indicate rising due to the removal of the ice sheets. Yellow and red areas indicate falling as mantle… …   Wikipedia

• 135 Hertha — Infobox Planet width = 25em name = 135 Hertha symbol = background = #FFFFC0 caption = discovery ref = Cite journal | title = Observations of the Planet Hertha (135), made at the Litchfield Observatory of Hamilton College | last = Peters | first …   Wikipedia

• Pole vault — Pole vaulting is an athletic field event in which a person uses a long, flexible pole (which today is usually made either of fiberglass or carbon fiber) as an aid to leap over a bar. Pole jumping competitions were known to the ancient Greeks, as… …   Wikipedia

• Geodetic system — For other uses, see Geodetic. Geodesy Fundamentals …   Wikipedia

• Point groups in three dimensions — In geometry, a point group in three dimensions is an isometry group in three dimensions that leaves the origin fixed, or correspondingly, an isometry group of a sphere. It is a subgroup of the orthogonal group O(3), the group of all isometries… …   Wikipedia

• Octahedral symmetry — The cube is the most common shape with octahedral symmetry A regular octahedron has 24 rotational (or orientation preserving) symmetries, and a symmetry order of 48 including transformations that combine a reflection and a rotation. A cube has… …   Wikipedia

• Rigid body — Classical mechanics Newton s Second Law History of classical mechanics  …   Wikipedia