? How is the Earth's magnetic field formed
"There are some important points to be made about the Earth's magnetic field."
? How is the Earth's magnetic field formed
The main element responsible for the formation of the Earth's magnetic field is "iron".
Then comes the role of uranium and thorium.
Then the crystallization process that accompanies the hardening of the outer shell of the Earth's core.
In order for the Earth's magnetosphere to develop, a huge energy source must be available. This source is the heat of the Earth's core, which reaches 6000 degrees Celsius, which is created by the tremendous pressure and radioactivity of uranium and thorium.
It remains for us to rotate the iron and molten metals around its axis in order to create the magnetic field, and this is achieved by the Earth's axial rotation.
If the Earth's axial rotation works to move the molten iron in the ground, and with the high heat that uranium and thorium contribute to producing, here the strongest magnetosphere around the Earth arises, if it is compared to the magnetosphere of other rocky planets.
? Why is the magnetic field reversing around the earth
The reversal of the field occurs to renew its activity to become stronger in the face of the blows of solar storms that exhausted the activity of the magnetic field.
It is a periodic natural process in the life of the Earth that occurs every 780,000 years.
How does the reversal of the Earth's magnetic field occur?
The concept of the reflection of the Earth's magnetic field means the weakness of the field in one hand and its intensity in the other, so that it is more compressed in the part facing the sun to counteract the blows of intense solar storms.
With the passage of time, the field strength in the compressed part facing the sun begins to weaken due to direct exposure to solar attacks, and the field strength becomes stronger in the other direction, here the reflection of the field is required.
Reflection is caused by a severe weakening of the field, and movement of the field itself.
And you should know that there is a difference between the phase of the magnetic field weakening and the moment of inversion of the field itself.
For a field reversal to occur, it must first go through gradual stages of weakness.
These stages will not be effective at first, but at a certain limit the field becomes very weak to the extent that the activity of condensing dangerous solar particles increases towards the Earth and then the reflection begins.
The reflection of the field is the most dangerous moment, because the field at that time will be weaker than possible, and after the reflection it will start to be active again quickly.
The danger of magnetic field inversion
Simply because the stage of weakness will negatively affect our daily life, which is always related to modern technology, which will gradually be affected by the weakening of the field due to an intense attack of charged and magnetic particles of solar storms towards the Earth.
More importantly, humans have never witnessed any reversal of the magnetic field before, the last reversal occurred 780,000 years ago, as it will be new to us for the first time, and therefore we will not be able to determine the degree of danger to living organisms how it will be, but it will inevitably be dangerous.
When will the next magnetic reversal happen
Scientists' maximum estimates range from 100 to 500 years, but during those days we saw a non-gradual weakening of the Earth's field and it started working irregularly and moving very quickly, and therefore that estimated period may decrease but we don't know exactly when Well, the weakening of the Earth's magnetic field will work The compass will point completely in the opposite direction, and therefore the navigation systems will change dramatically, in addition to affecting the GPS satellites, and the navigational defect that will occur in the future must be adjusted.
magnetic north pole
2001:-
81.3⁰ North
110.8⁰ west
2004:-
82.7⁰ North
113.4⁰ west
2005:-
82.7⁰ North
114.4⁰ west
magnetic south pole
1998:-
64.6⁰ south
138.5⁰ East
Year 2004:-
63.5⁰ South
138.0⁰ East
"Finally, you should know that there is no relationship between the reversal of the Earth's magnetic field and the reversal of the Earth's axial rotation."
Source: websites