If you heat up a magnet it stops being a magnet. So why is the molten metal in the earths core a magnet if it’s so hot?Also if you had a pure iron asteroid that was going to miss the earth but go really close nearby would the magnetic field have any pull on it not caused by gravity?
In: Planetary Science
Earth is a really bad magnet, it doesn’t have much of a field at all, it’s just really big, a little refrigerator magnet will pull metal thousands of times harder than the whole entire planet. The iron in the earth is just barely making a field, but there is just an awful lot of earth so a little is kinda a lot.
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