Earth\'s poles switching their magnetism?
I was watching Naked Science yesterday and they were talking about the Earth's magnetic poles and why they are important. Then they said that they may be flipping, or in the first stages of flipping. They mentioned that they've done this many times in the "millions of years" the Earth has been around [though I'm not sure how they figured that]. At any rate, did anyone see that report or heard this before?
I was watching Naked Science yesterday and they were talking about the Earth's magnetic poles and why they are important. Then they said that they may be flipping, or in the first stages of flipping. They mentioned that they've done this many times in the "millions of years" the Earth has been around [though I'm not sure how they figured that]. At any rate, did anyone see that report or heard this before?