motion of poles

См. также в других словарях:

• Diurnal motion — is an astronomical term referring to the apparent daily motion of stars around the Earth, or more precisely around the two celestial poles. It is caused by the Earth s rotation on its axis, so every star apparently moves on a circle, that is… …   Wikipedia

• polar motion — ▪ geophysics       a periodic rotation of the Earth s spin axis about a mean axis, somewhat like the wobble of a spinning top. Slight variations in latitude and longitude result from this wobble because the poles are displaced from their mean… …   Universalium

• Magnetosphere particle motion — A sketch of Earth s magnetic field representing the source of Earth s magnetic field as a magnet The north pole of earth is near the top of the diagram, the south pole near the bottom. Notice that the south pole of that magnet is deep in Earth s… …   Wikipedia

• Oblique motion — Oblique Ob*lique , a. [F., fr. L. obliquus; ob (see {Ob }) + liquis oblique; cf. licinus bent upward, Gr. le chrios slanting.] [Written also {oblike}.] [1913 Webster] 1. Not erect or perpendicular; neither parallel to, nor at right angles from,… …   The Collaborative International Dictionary of English

• List of Poles — This is a partial list of famous Polish or Polish speaking or writing persons. In the interest of fairness and accuracy, a minority of persons of mixed heritage have their respective ancestries credited.HistoryMathematics Bartel * Stefan Banach * …   Wikipedia

• equinoxes, precession of the — Motion of the points where the Sun crosses the celestial equator, caused by precession of Earth s axis. Hipparchus noticed that the stars positions were shifted consistently from earlier measures, indicating that Earth, not the stars, was moving …   Universalium

• geomagnetic field — Magnetic field associated with the Earth. It is essentially dipolar (i.e., it has two poles, the northern and southern magnetic poles) on the Earth s surface. Away from the surface, the field becomes distorted. Most geomagnetists explain the… …   Universalium

• climate — /kluy mit/, n. 1. the composite or generally prevailing weather conditions of a region, as temperature, air pressure, humidity, precipitation, sunshine, cloudiness, and winds, throughout the year, averaged over a series of years. 2. a region or… …   Universalium

• Earth's magnetic field — Computer simulation of the Earth s field in a normal period between reversals.[1] The tubes represent magnetic field lines, blue when the field points towards the center and yellow when away. The rotation axis of the Earth is centered and… …   Wikipedia

• Russia — /rush euh/, n. 1. Also called Russian Empire. Russian, Rossiya. a former empire in E Europe and N and W Asia: overthrown by the Russian Revolution 1917. Cap.: St. Petersburg (1703 1917). 2. See Union of Soviet Socialist Republics. 3. See Russian… …   Universalium

• electromagnetism — /i lek troh mag ni tiz euhm/, n. 1. the phenomena associated with electric and magnetic fields and their interactions with each other and with electric charges and currents. 2. Also, electromagnetics. the science that deals with these phenomena.… …   Universalium