The entire planet Earth would easily fit under the archway formed by the magnetic field loop. The magnetic field of Earth protects the life of Earth from the harmful cosmic radiation and charged particles emitted from the Sun. Posted on Thursday, 3 January, 2013 | 6 comments Columnist: William B Stoecker [!gad]The Earth’s magnetic field makes compasses function and shields us from dangerous solar radiation.
So other planets have it too!
A compass works the way it does because Earth has a magnetic field that looks a lot like the one in a magnet. The Earth's field is completely invisible, but it can be felt by a compass needle on the Earth's … Our planet's magnetic field is in a constant state of change, say researchers who are beginning to understand how it behaves and why. In effect, the navigation systems and mapping functions in smartphones may be affected. Why does the Earth have a magnetic field ? Earth's magnetic field has flipped many times over the last billion years, according to the geologic record.
We can see these loops of magnetism on the sun because very hot gases flow along them and light them up! For a long time, the existence of a magnetic field in our planet seemed something completely natural – they say that a cat has four legs, a horse eats oats and hay, and the Earth has a magnetic field. Birds, turtles and other creatures also use the magnetic field of Earth to navigate. Earth's magnetic field is a magnetic field that emanates from Earth's core and encircles the Earth.
By signing up, you'll get thousands of step-by-step solutions to your homework questions. Every few years, scientist Larry Newitt of the Geological Survey of Canada goes hunting. In general, the existence of a magnetic field was not considered particularly important.
Answer to: Why does Earth have a magnetic field? Yet we don’t really know what produces it, and there are many, many aspects of it which are a complete mystery.
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