New York : NASA Scientists have observed some very dangerous changes happening in the earth at this time. Earth’s magnetic field has weakened over a large part of the ground. It has become so weak that if the aircraft flies from above this area, it will be difficult to contact it. What is this problem and how did it occur?
In a very large part of the earth, the magnetic field has weakened. This part is spread over 10 thousand kilometers. There is a decrease in the strength of the magnetic field up to the outer core of the earth 3000 kilometers below this area.
From Africa to South America, the strength of the magnetic field inside the Earth has reduced in a distance of about 10 thousand kilometers. In general it should have been 32 thousand nanotesla. But from 1970 to 2020 it has reduced from 24 thousand to 22 thousand nanotesla.
This information has been received from the US Space Agency NASA. Due to the weakness in the magnetic field on this part of the earth, it can be difficult to communicate with the satellites stationed above the ground and flying planes.
Scientists said that in the last 200 years, the magnetic power of the earth has decreased by 9 percent. But a considerable decrease in magnetic strength is being observed from Africa to South America. Scientists call it the South Atlantic Anomaly.
Now you must be wondering what we have to do with the magnetic field of the earth. So do note that due to the magnetic power of the Earth, we are protected from radiation coming from space. All types of communication systems like satellite, mobile, channel etc. are working with the help of this power.
How the Earth’s magnetic field is produced –
Inside the earth there is a flowing sea of hot iron. It is about 3000 km below the surface of the earth. It keeps moving. Its rotation creates electrical current from inside the earth, which turns up into an electromagnetic field.
Recently there were some studies that the Earth’s magnetic north pole is changing its place. This poll is going from Canada towards Siberia. This is due to the rotation of this hot molten iron.
There is a lack of magnetic field in the area from Africa to South America. This has weakened our magnetic security layer over that area. That is, the effect of radiation coming from space in this area can be more.
German Research Center researcher Juergen Matzka said that in the last few decades the magnetic force in the region from Africa to South America has been decreasing rapidly.
Juergen said that the biggest issue now is that we have to find out how big changes will happen due to the changes happening in the center of the Earth. Will it cause any major disaster on the earth. Usually the magnetic force of the Earth varies in 2.50 lakh years. But it still has a lot of years to go.