Another phenomenon that points to a young earth is its magnetic field. In the ’70s, Dr. Thomas Barnes, a physics professor, analyzed data from 1835 through to 1965 and concluded that the field is decaying, that it is getting weaker, at 5% per century. ([Footnote:] K.L. McDonald and R.H. Gunst, “An analysis of the earth’s magnetic field from 1835 to 1965,” ESSA Technical Report, IER 46-IES 1, U.S. Government Printing Office, Washington, 1967. Later investigation showed that the field was 40% stronger in 1000 A.D. than it is today. Professor Barnes postulated the “free-decay theory,” which proposes that a decaying electric current in the earth’s metallic core is the cause. Assuming a constant decay of intensity, the current could not have been decaying for more than 10,000 years, or else its original strength would have been large enough to melt the earth. The conclusion from this is that the earth could not be older than 10,000 years.
Evolutionists postulate that some sort of a self-generating dynamo causes the liquid in the core to circulate, generating the magnetic field, rather than an electrical current circulating in a motionless liquid core as postulated by Barnes. Evolutionist scientists have been trying to construct a dynamo model or theory for the past 40 years that would take into account the data available, but so far have failed to come up with one that satisfies the criteria.
[Callout:] The weakening magnetic field of the earth is evidence of a young earth.
However, creationist physicist Dr. Russell Humphreys,(previous page) Ph.D. Physics (ICR) has a B.S. in Physics from Duke University and a Ph.D. in Physics from Louisiana State University. Dr. Humphreys then worked six years for the High Voltage Laboratory of General Electric. While there, he received a U.S. patent and one of Industrial Research Magazine’s IR-100 awards. He has worked for Sandia National Laboratories since 1979 in nuclear physics, geophysics, pulsed power research, theoretical atomic and nuclear physics, and the Particle Beam Fusion Project. He was co-inventor of special laser-triggered “Rimfire” high-voltage switches. Dr. Humphreys has received another U.S. patent and two awards from Sandia, including an award for excellence for contributions to light ion-fusion target theory.) looking at data derived from archeomagnetism and paleomagnetism, proposed that the free-decay theory needed to be revised because it was shown that the decay of the magnetic field hadn’t been constant over time. Wild fluctuations, and in fact complete reversals, in the earth’s magnetic field occurred during the period approximating the time of Noah’s Flood. He proposed the dynamic-decay theory to accommodate this new data. When all this is taken into account, it shortens the age of the earth to within the range of 6,000 years. The rate of decay in the earth’s magnetic field is now constant, so it is believed that the dynamic, or fluctuating rate of decay, occurred earlier in the earth’s history. Even if some of the decay happening today is still dynamic, which is unlikely, the age of the earth at a maximum would be around 100,000 years. That is still far too short a time for the processes attributed to evolutionary theory to have taken place. The dynamic-decay modification to the free-decay theory remains the best model for accommodating the data currently available. ([Footnote:] “The Earth’s Magnetic Field Is Young” by Russell Humphreys, Ph.D. in Impact, No. 242, issued by the Institute for Creation Research.)