I can confirm with certainty that it is older than me.
The rest is hearsay and random theorizing.
I can confirm with certainty that it is older than me.
The rest is hearsay and random theorizing.
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Right on!
It's like the museum guard who, when asked how old the dinosaur bones were, replied "6 million and 6 years old" - because when he started there 6 years previous, he was told the age of the bones in the exhibit was 6 million years.
The article is gibberish english any college graduate would (or ought to) be ashamed of. Hard to respect science opinions that do not come with scientific facts.
The defense of the article as to its own theories is not sustained by modern scientific understanding that the mechanisms of the earths magnetic field is not fully explained by empirical observations. That is actually GOOD science, admitting our limits of understanding, but it does add any support to other theories about earth’s magnetic fields that arrive with no scientific suppport, just other theories.
“Strong channels in Earth’s core drive this field, but the energy loss—as in an electrical circuit—tend to drain off in the passage of time.”
Evidence presented? None.
“Historically, measurements show that Earth is at a loss of one-half of its magnetic energy every 1,400 years or so.”
The citation took an article that covered all of 130 year period (a very brief period of time) of “recorded reports” of the earth’s magnetic field, from 1835 to 1865, of limited geograophic distribution, and imputed from that some sort of mega-historical constant. It lacked the more modern and deeper historical record that (a) the magnetic field does not display a common strength across the globe universally, nor at all times. It not only varies at any one time from one region to another, but has varied globally over the ages. At the current state of the science, a general weakening of the field in our modern times is seen as not a historical anomaly, but part of a process that has been repeated before and signals a pole-shifting event that will manifest in time.
It is not the belief of science that some original “charge” of energy set off the inner dynamo that makes earth’s magnetic field. Rather it is the differences in composition of what is believed to be earth’s molten core with the layer above literrally spinning around it that generates the magnetic field. As gravity continually affects the dynamics and changes of every layer of the earth, the consequences present constamt slow changes to the dynamo at the center. Those changes present a slowly but constantly changing magnetic field, but what adjustments in observed temporary changes in the strenght of the field DO NOT demonstrate or predict is a field that over the long term is “running down” as to its energy.
Amen.