As usual, I am behind in my reading, but the 12 May 2006 /Science/ has a
report that the decline in the magnetic field from 1840-1990,
extrapolated by Creationists, is historically high. It measures about 15
nT/yr. But from 1590-1840 it was 2.28 +/- 2.72 nT/yr. They also mention
an analysis of the rate for the past 5000 years that is clearly lower
than the last 150 years. See Collins et al., "Fall in Earth's Magnetic
Field Is Erratic," pp. 900-902. Do you suppose this correction will soon
appear in the Creationist literature, especially since there may be a
small increase? What about the reverse fields in the magnetic striping
observed on either side of the Atlantic Midocean Ridge?
It would be so nice to have all the right answers and be able to sort
through observational evidence and discard all the mistaken claims. But
the series "Let's start with the assumption that I am right" does not
apply to me.
Yours fallibly,
Dave
Received on Sat Jun 3 17:46:49 2006
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