Earth's Em Field [day After Tomorrow]

Earth's EM Field

Where does earth get it's electromagnetic field? What does earth's EM field do?

Does it protect us from solar winds, if it does, what would happen if it failed? Questions

from the movie The Core answered.

Where does earth get it's electromagnetic field? Well, in my research I have found that earth's outer core does in fact spin, the motion of spinning metallic liquid of nickel, and iron create an electromagnetic current that becomes the earths field. This is called the dynamo effect. There are two belts that are created, the inner belt and the outer belt.

In my quest to find out what earth's EM field does, I found out that it protects us from solar winds. I found that the EM field actually acts like a shield, and when a solar wind occurs the field looks like it's "cutting" through the solar wind like a boat through water. Solar winds are actually quite a strange phenomena, these are streams of ionized gasses that are forced or "blown" outward from the sun that vary in intensity but travel at about four hundred kilometers per second.

If for instance the earth's electromagnetic field was not present, there is no data found on this so, using scientific knowledge the earth would literally "bake" from the sun's solar winds. Then again our trusty outer core has yet to stop, without touching ethics this would be a catastrophe, basically the end of the earth. However in reviewing scientific articles I doubt this could happen any time in near the future.

In my findings I happen to find this section of the movie "The Core" to be true on scientific terms. The earth's core does spin, and the electromagnetic field created by the spinning of the metals creates a barrier that protects us from solar winds.