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Discovery Magazine 11/1/2009

The Earth’s Decaying Magnetic Field

If you go hiking or camping, you might take along a compass to make sure that you do not get lost. When you look at the compass, you see that the arrow of the compass always points to the north; it never points to the south or west (unless your compass is broken). Have you ever wondered why compasses point north?

The answer has to do with the Earth’s magnetic field. In the core of the Earth, a huge electric current is produced that causes the Earth to produce a magnetic attraction. That magnetic attraction is what causes the arrow on your compass to point North. What does this have to do with the Earth’s age? Scientists who have been studying the Earth’s magnetic forces have discovered that they are getting weaker and weaker every year. One government report stated that the magnetic field will be gone by the year A.D. 3991.

If we look at how fast the magnetic field is decaying today, and try to calculate how long it has been decaying, we learn something very interesting. If you go backward for just a few thousand years, the heat inside the Earth would have been so great that the Earth would have broken apart and cracked. One scientist, Thomas G. Barnes, indicated that, after measuring the magnetic field, the Earth can only be about 10,000 years old. Maybe the Earth’s magnetic field did not decay in the past like it is decaying today. But, if we look at how it is decaying today, like evolutionists do with other dating methods, we get a very young Earth that is only a few thousand years old.

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