constant of nutation

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• constant of nutation — the amplitude of the celestial latitude component of the precessional nutation of the earth s axis that is equal to about 9.2 seconds of arc compare nutation 2 …   Useful english dictionary

• Nutation — See also: Nutation in plants Rotation (green), Precession (blue) and Nutation in obliquity (red) of the Earth Nutation (from Latin: nūtāre, to nod) is a rocking, swaying, or nodding motion in the axis of rotation of a largely axially symmetric… …   Wikipedia

• Edward James Stone — (February 28, 1831 ndash;May 6, 1897) was an English astronomer.He was born in Notting Hill, London to Roger and Elizabeth Stone. Educated at the City of London School, he obtained a studentship at King s College London, and in 1856 a scholarship …   Wikipedia

• Stone, Edward James — Stone, Edward James, Astronom, geb. 28. Febr. 1833 in London, gest. 9. Mai 1897 in Oxford, studierte in Cambridge Astronomie, wurde 1860 Assistent an der Sternwarte in Greenwich, 1870 Royal Astronomer am Kap der Guten Hoffnung, 1879 Direktor der… …   Meyers Großes Konversations-Lexikon

• Gyro monorail — The gyro monorail, gyroscopic monorail, gyro stabilized monorail, or gyrocar all denote a single rail land vehicle, road or rail, which uses the gyroscopic action of a spinning wheel, which is forced to precess, to overcome the inherent inverted… …   Wikipedia

• Aberration of light — Light from location 1 will appear to be coming from location 2 for a moving telescope due to the finite speed of light, a phenomenon known as the aberration of light. The aberration of light (also referred to as astronomical aberration or stellar …   Wikipedia

• ASTRODYNAMIQUE — L’astrodynamique est la science qui s’attache à expliciter la dynamique des astres et des forces qui les font se mouvoir. Par extension, la dynamique des satellites artificiels lui est assimilée. On peut dès lors définir l’astrodynamique comme la …   Encyclopédie Universelle

• mechanics — /meuh kan iks/, n. 1. (used with a sing. v.) the branch of physics that deals with the action of forces on bodies and with motion, comprised of kinetics, statics, and kinematics. 2. (used with a sing. v.) the theoretical and practical application …   Universalium

• Tide — This article is about tides in the Earth s oceans. For other uses, see Tide (disambiguation). Tidal redirects here. For other uses, see Tidal (disambiguation). High Tide redirects here. For other uses, see High Tide (disambiguation) …   Wikipedia

• TERRE — Avant d’être un concept, la Terre fut une donnée: d’abord, la Terre nourricière – autrement dit, la «terre végétale» –, puis, la Terre où l’homme vit, par opposition à la mer, c’est à dire les terres émergées. Tout naturellement, cette Terre,… …   Encyclopédie Universelle

• TROPISMES VÉGÉTAUX — Chez les végétaux, on appelle tropisme (du grec tropein : tourner) une modification de la direction de la croissance, c’est à dire une courbure causée par un stimulus extérieur et en rapport avec la direction du stimulus. Par exemple, des pousses …   Encyclopédie Universelle