Категория:Виляние: различия между версиями
(→wikipedia:True polar wander) |
(→wikipedia:True polar wander) |
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Cases of true polar wander have occurred several times in the course of the Earth's history. The speed of rotation (around the axis of lowest inertia) is thought to have been less than about 1° per million years. | Cases of true polar wander have occurred several times in the course of the Earth's history. The speed of rotation (around the axis of lowest inertia) is thought to have been less than about 1° per million years. | ||
− | Polar wander should not be confused with [[:Категория:Прецессия|precession]], which is where the axis of rotation moves, in other words the North Pole points toward a different star. There are also smaller and faster variations in the axis of rotation going under the term [[Нутация|nutation]]. Precession is caused by the gravitational attraction of the Moon and Sun, and occurs all the time and at a much faster rate than polar wander. It does not result in changes of latitude. True polar wander has to be distinguished from [[Тектоника плит|continental drift]]... The effect should further not be confused with the effect known as [[Смена магнитных полюсов|geomagnetic reversal | + | Polar wander should not be confused with [[:Категория:Прецессия|precession]], which is where the axis of rotation moves, in other words the North Pole points toward a different star. There are also smaller and faster variations in the axis of rotation going under the term [[Нутация|nutation]]. Precession is caused by the gravitational attraction of the Moon and Sun, and occurs all the time and at a much faster rate than polar wander. It does not result in changes of latitude. True polar wander has to be distinguished from [[Тектоника плит|continental drift]]... The effect should further not be confused with the effect known as [[Смена магнитных полюсов|geomagnetic reversal]] |
{{critics|2}} | {{critics|2}} | ||
'It does not result in changes of latitude' означает, что прецессия не влияет на [[Широта|широту]], измеренную относительно Солнца; относительно неподвижных звезд прецессия влияет на широту. | 'It does not result in changes of latitude' означает, что прецессия не влияет на [[Широта|широту]], измеренную относительно Солнца; относительно неподвижных звезд прецессия влияет на широту. |
Версия 14:34, 2 февраля 2020
Синонимы
wander
wikipedia:True polar wander[править]
- If the body is not in this steady state, true polar wander will occur: the planet or moon will rotate as a rigid body to realign the largest moment of inertia axis with the spin axis...
- If the body is near the steady state but with the angular momentum not exactly lined up with the largest moment of inertia axis, the pole position will Категория:Прецессия#Polar motion.
Cases of true polar wander have occurred several times in the course of the Earth's history. The speed of rotation (around the axis of lowest inertia) is thought to have been less than about 1° per million years.
Polar wander should not be confused with precession, which is where the axis of rotation moves, in other words the North Pole points toward a different star. There are also smaller and faster variations in the axis of rotation going under the term nutation. Precession is caused by the gravitational attraction of the Moon and Sun, and occurs all the time and at a much faster rate than polar wander. It does not result in changes of latitude. True polar wander has to be distinguished from continental drift... The effect should further not be confused with the effect known as geomagnetic reversal
критика
'It does not result in changes of latitude' означает, что прецессия не влияет на широту, измеренную относительно Солнца; относительно неподвижных звезд прецессия влияет на широту.
Подкатегории
В этой категории отображается 3 подкатегории из имеющихся 3.