Mickey O'Neil
Active Member
The formula "1.05 ^ 14.5 = 2.0" assumes the 5% decay rate is linear, which is not true in the slightest.7. The Earth's Magnetic Field:
The Earth's magnetic field is decaying at the rate of about 5 % every 100 years. This means that about 1450 years ago it was twice as strong as it is today, and 2900 years ago it was four times as strong. Therefore, assuming that the rate of decay has been constant for the recent past, then only 10,000 years ago the earth's magnetic field would have been 128 times as strong as it is today: so strong that the amount of heat produced would have prevented life as we know it from existing on earth. [SUP]23,24,25,26 [/SUP]In other words, it seems likely that the Earth's magnetic field is quite young, and suggests that the earth itself is also young.
The fact that the earth's magnetic field is decaying is well documented. For example, a recent NOVA Special on this subject brought this out very clearly. In fact, at present rates of decay, the earth may not even have a magnetic field 1000 years from now. And although, the NOVA special strongly suggested that this may simply mean the earth is getting ready for another reversal, such may not be the case, as Dr. Humphreys work suggests. A brief portion of Dr. Humphreys findings are quoted below.
<continued here> http://www.earthage.org/youngearthev/evidence_for_a_young_earth.htm
Another problem with that logic is it does not account for when the magnetic field flips. During this transition, the field forms a toroid around the planet, leaving it unprotected. Our field is decaying until it forms the toroid, then reverses and strengthens. The Sun's field also flips, and seems to be what causes the Earth's field to flip too.
Better info here: http://en.wikipedia.org/wiki/Geomagnetic_reversal