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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.
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∙ 9y ago
Wiki User
∙ 11y ago250,000
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Minerals in igneous rocks can show the direction of earths?
The Earth magnetic field changes approximately every 200,000 thousand years.
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.
How does earths magnetic axis compare to its rotational axis?
The magnetic axis is relatively unstable compared to the rotational axis. The magnetic poles move around quite a bit from decade to decade. In fact, geologists have discovered that the alignment of the molecules in some sedimentary materials shows that the north and south magnetic poles actually switch places every few tens of thousands of years.
How often do earth magnetic poles reverse?
Time periods between Earth's magnetic pole reversals are varied. There are geologic periods where multiple reversals have occurred and periods of no activity. In the last 3.6 million years, there have been at least nine reversals, the last occurring 730,000 years ago.
The duration of the sunspot cycle is approximately?
Every 11 years. The entire solar magnetic cycle takes about 22 years; twice in this cycle there is a sunspot maximum.
Earths magnetic poles reverse approximately every how many years?
250,000 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).
