(periodical motions)

См. также в других словарях:

• periodical star — Star Star (st[aum]r), n. [OE. sterre, AS. steorra; akin to OFries. stera, OS. sterro, D. ster, OHG. sterno, sterro, G. stern, Icel. stjarna, Sw. stjerna, Dan. stierne, Goth. sta[ i]rn[=o], Armor. & Corn. steren, L. stella, Gr. asth r, a stron,… …   The Collaborative International Dictionary of English

• Perturbation (astronomy) — Perturbation is a term used in astronomy in connection with descriptions of the complex motion of a massive body which is subject to appreciable gravitational effects from more than one other massive body.[1] Such complex motions of a body can be …   Wikipedia

• Berkeley Marine Corps Recruiting Center controversy — The Berkeley Marine Corps Recruiting Center Controversy began in September 2007 when a small group of protesters from Code Pink began periodically protesting in front of a United States Marine Corps Officer Selection Office located in Downtown… …   Wikipedia

• earth — /errth/, n. 1. (often cap.) the planet third in order from the sun, having an equatorial diameter of 7926 mi. (12,755 km) and a polar diameter of 7900 mi. (12,714 km), a mean distance from the sun of 92.9 million mi. (149.6 million km), and a… …   Universalium

• ZIONISM — This article is arranged according to the following outline: the word and its meaning forerunners ḤIBBAT ZION ROOTS OF ḤIBBAT ZION background to the emergence of the movement the beginnings of the movement PINSKER S AUTOEMANCIPATION settlement… …   Encyclopedia of Judaism

• Sacco and Vanzetti — This article is about the individuals Nicola Sacco and Bartolomeo Vanzetti. For 1971 film, see Sacco e Vanzetti. For 2004 docu drama, see The Diary of Sacco and Vanzetti. For 2006 documentary film, see Sacco and Vanzetti (film). Bartolomeo… …   Wikipedia

• solar system — the sun together with all the planets and other bodies that revolve around it. [1695 1705] * * * The Sun, its planets, and the small bodies (see asteroid, Centaur object, comet, Kuiper belt, meteorite, and Oort cloud) interplanetary dust and gas… …   Universalium

• Beech Ridge Wind Farm — The Beech Ridge Wind Farm is a USD 300 million, 124 wind turbine wind farm proposed to be developed in Greenbrier County, West Virginia, in the United States. The 400 foot (122 m) tall wind turbines, each of which will generate 1.5 megawatts of… …   Wikipedia

• Turing's proof — First published in January 1937 with the title On Computable Numbers, With an Application to the Entscheidungsproblem , Turing s proof was the second proof of the assertion (Alonzo Church proof was first) that some questions are undecidable :… …   Wikipedia

• Hindu chronology — The subject of Hindu chronology divides naturally into three parts: the calendar, the eras, and other reckonings. The Calendar The Hindus have had, from very ancient times, the system of lunisolar cycles, made by the combination of solar years,… …   Wikipedia

• 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