Creation & EvolutionForum for the discussion of this important topic. This forum is open to non-believers. There is a Christians-only forum in the Christians-only section too.
It's not an assumption, it's a conclusion; magnetic field reversals are the best known explanation for them.
Best as per whose opinion??? Conclusions are a dime a dozen, I have some of my own. What about magnetic reversals?? All that means is that the charge went another direction in the past, but, so what?? If your whole inner earth dynamo of molten ancient iron story is wrong, then mere directional changes in the magnetic field of earth in the past are a piece of cake to explain.
If you disagree, do you have a better explanation? If you don't, why are you disagreeing?
Disagree with what? That there were directional flow changes? No, if the evidence shows there was, why would I disagree? I simply note that the actual evidenced observations show a decreasing field.
I lean toward the explanation that something else caused the magnetic field in the past, and it never was what is now claimed. Whatever it was, may have ceased to function as it used to in the different state past, and the decrease in the field may be a result.
__________________ Pr 21:30 -There is no wisdom nor understanding nor counsel against the LORD.
in the past, but, so what?? If your whole inner earth dynamo of molten ancient iron story is wrong, then mere directional changes in the magnetic field of earth in the past are a piece of cake to explain.
"The average "intensity" of the earth's magnetic field has decreased exponentially by about 7% since its first careful measurement in 1829.[1]
If the first measurement took place in 1829, and the graph looks linear not only for "this small section" but the entirety of the available data, how does one arrive at the conclusion of exponential decrease?
That sounds a lot like wishful thinking to me...
__________________ "One of the most basic laws in the universe is the Second Law of Thermodynamics. [...] Evolution argues differently against a law that is accepted EVERYWHERE BY EVERYONE. Evolution says that we started out simple, and over time became more complex. That just isn't possible: UNLESS there is a giant outside source of energy supplying the Earth with huge amounts of energy. If there were such a source, scientists would certainly know about it."
Dad is often quite flippant when heaping condescension on others, but I learned he is pretty thin skinned when people say anything that he find "blasphemous" or disrespectful to God.
I think he needs a refresher on the whole "Golden Rule" thingy in Luke 6:31.
If the first measurement took place in 1829, and the graph looks linear not only for "this small section" but the entirety of the available data, how does one arrive at the conclusion of exponential decrease?
That sounds a lot like wishful thinking to me...
The Graph dad posted is from some other website (the link only shows the graph, no detailed discussion), the quote is from here, apparently:
McDonald, K. L. and R. H. Gunst. "An analysis of the earth's magnetic field from 1835 to 1965," ESSA Technical Report IER 46-IES 1 (July 1967) U.S. Government Printing Office, Washington, D.C., Table 3, p. 14.
Maybe if we had more info on the graph dad posted.
Linear Mode
