The inner part of the Earth’s rutri layer core is considered a solid ball made of metals like iron and nickel. Whereas the outer part of this is made of liquid with melted metals. This is followed by the other two exterior pears of the Earth. The mantle layer is present after the core and then the top layer crust on which we live.
Researchers study these layers through waves. These waves are sent out during earthquakes. Researchers record them and detect the status and composition of the three layers. Professor John Vidale, who is associated with the study from University of Southern California, says that he was stunned when he first saw the seismogram waves.
After several decades, the speed of Bhatri core has decreased. At the same time, some studies about this also say that it is moving at a faster speed than the Earth’s speed. Its rotation is affected by the megatic field produced by the outer core. Also, the effect of mental gravity is also mentioned on this.
Researcher from University of California San Diego Duncan Agnew says that the speed of the liquid core was also reduced by the earth’s speed. To reduce this effect, the solid part of the earth started moving at a faster speed. After a few years since 1972, the need to add a leap second to UTC time is seen, as it is believed that the earth is not always moving at the same speed.
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