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Earths magnetic poles reverse approximately every how many years?
Wiki User
∙ 11y ago
250,000 years
Wiki User
∙ 11y ago
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If one of the earths plates moves 5 centimeters every year how far will it move in 500 years?
Twenty five meters.
Of True North and Magnetic North and Compass North which way is really up?
True North is the real North, following along the lines of longitude which converge at the North Pole, the farthest geographically North point on the planet, and the rotational axis of the planet. Magnetic North and Compass North are both the same thing, with the compass pointing along Magnetic North. Magnetic North however, is not the real North. If you were to follow your compass as far North as it could point, you would end up on the Prince of Wales Island in the Northwest Territories of Canada, over 1,500 miles away from the North Pole. Magnetic North can be adjusted to True North on your compass by knowing the local magnetic variation of your area and adding/subtracting accordingly. A third North is Grid North, which follows the Grid Lines on a standard map. At the South Pole, every direction is True North, so Grid North is used instead and can be found by following the Prime Meridian northwards. Hope that helps.
How did volcanoes affect the early earths atmosphere?
Early volcanoes discharged different combinations of gases into the Earth's atmosphere creating rain, which cooled the planet and formed solid land masses, and every other element discovered presently.
How long does it take to grow berries in heartgold?
I believe it takes approximately 16 hours. You have to water it every 1-2 hours for maximum profit.
How do rotation and tilt each affect the ammount of solar energy that differenty parts of earth receive?
They affect because earths rotation can go larger and sorter from sun and ,tilt affects because it can move earth at every side and that has a shadow in other part of earth.
Earths magnetic poles reverse approximately every years?
The process of the reversal of the Earth's magnetic poles is called a magnetic flip. This occurs every 4 or 5 times per million years.
About how do earths magnetic poles reverse?
every 250,000 years :)
About how often do earths magnetic poles reverse?
Every 250,000 years, when it farts
Minerals in igneous rocks can show the direction of earths?
The Earth magnetic field changes approximately every 200,000 thousand years.
About how often do earths magnetic poles?
every 250,000 years :)
Why do scientists think that earths' magnetic field has not always pointed north?
Every 100,000 years or so, the Earths magnetic field shifts direction. North becomes south, south becomes north.
What is the space curiosity that returns to earths view approximately every 76 years?
Halleys Comet
A space curiosity that returns to earths view approximately every 76 years?
Halley's Comet
What do the earths magnetic poles move around?
This happens about once every 50 to 100 thousand years and is called a magnetic reversal.It would appear that the self generated magnetic fields formed by rotating bodies all undergo pole reversals. For instance the Sun does this about every 11 years.
Earths magnetic field results from movements in what?
The Earth's magnetic field results from electric currents in the mantle and outer core around the iron solid core; every electricmagnet is prduced as a result of electricity flowing around a iron core - the same principle works in our own magnetic field.
Do all planets rotate in the same direction as earth and are their magnetic poles the same and aligned with the earths magnetic pole?
No. The Earth rotates counter-clockwise around its own axis, when viewed from above its North Pole. Venus rotates in the opposite (clockwise) direction, around its own axis, when viewed from 'above'. The Earth's magnetic poles wander as much as 15 km every year and reverse or "flip" with an average interval of approximately 250,000 years. Presumeably, this can also happen on any of the other planets that happen to have magnetic poles. However, Venus does revolve counter-clockwise around the Sun, as observed from 'above' the Sun's 'north pole.' The Earth also revolves counter-clockwise, as do all of the other planets that revolve around our Sun.
How does the earths magnetic fieldprotecting the life on earth?
I saw a show on this topic. Every once in a while the sun shoots out solar flares, these are made out of the suns material and are dangerous, they also go pretty far. Occasionaly one heads straight for earth, but the earths magnetic is strong enough to make a "shield" around the earth (sorry if this isn't enough detail).
