- polar perturbation
-
полярная магнитная буря
English-Russian dictionary of geology. 2011.
English-Russian dictionary of geology. 2011.
Polar modulation — is analogous to quadrature modulation in the same way that polar coordinates are analogous to Cartesian coordinates. Quadrature modulation makes use of Cartesian coordinates, x and y . When considering quadrature modulation, the x axis is called… … Wikipedia
Perturbation endocrinienne — Modulateur endocrinien La notion de modulateur endocrinien (ou perturbateur endocrinien, disrupteur endocrinien, leurre hormonal ou Xénooestrogène...) est une notion apparue à la fin du XXe siècle pour désigner toute molécule ou agent… … Wikipédia en Français
Perturbation hormonale — Modulateur endocrinien La notion de modulateur endocrinien (ou perturbateur endocrinien, disrupteur endocrinien, leurre hormonal ou Xénooestrogène...) est une notion apparue à la fin du XXe siècle pour désigner toute molécule ou agent… … Wikipédia en Français
Orbital perturbation analysis (spacecraft) — Isaac Newton in his Philosophiæ Naturalis Principia Mathematica demonstrated that the gravitational force between two mass points is inversely proportional to the square of the distance between the points and fully solved corresponding two body… … Wikipedia
Orbite polaire — Animation montrant une orbite polaire Un satellite en orbite polaire survole les pôles d une planète (ou d un autre corps céleste) à chaque révolution. Il tourne autour d un astre avec une inclinaison élevée – proche de 90 degrés – ce qui le rend … Wikipédia en Français
Orbit — This article is about orbits in celestial mechanics, due to gravity. For other uses, see Orbit (disambiguation). A satellite orbiting the Earth has a tangential velocity and an inward acceleration … Wikipedia
Hamilton's principle — In physics, Hamilton s principle is William Rowan Hamilton s formulation of the principle of stationary action (see that article for historical formulations). It states that the dynamics of a physical system is determined by a variational problem … Wikipedia
List of mathematics articles (P) — NOTOC P P = NP problem P adic analysis P adic number P adic order P compact group P group P² irreducible P Laplacian P matrix P rep P value P vector P y method Pacific Journal of Mathematics Package merge algorithm Packed storage matrix Packing… … Wikipedia
Sun-synchronous orbit — Diagram showing the orientation of a Sun synchronous orbit (green) in four points of the year. A non sun synchronous orbit (magenta) is also shown for reference A Sun synchronous orbit (sometimes called a heliosynchronous orbit) is a geocentric… … Wikipedia
Nordström's theory of gravitation — In theoretical physics, Nordström s theory of gravitation was a predecessor of general relativity. Strictly speaking, there were actually two distinct theories proposed by the Finnish theoretical physicist Gunnar Nordström, in 1912 and 1913… … Wikipedia
Orbital mechanics — A satellite orbiting the earth has a tangential velocity and an inward acceleration. Orbital mechanics or astrodynamics is the application of ballistics and celestial mechanics to the practical problems concerning the motion of rockets and other… … Wikipedia