Posted on 12/08/2010 8:07:46 PM PST by mdraghici
Is that true? In all sincerity, I do not recall that at all.
The initial discussion related to long time frames regarding the statement by another that the earth ‘does not wobble’. What can be used for calculations over the minute time-frame of human lifetime or history doesn’t really play into the geologic time-frames we are discussing. The point was regarding the 2 degree wobble over a 41k year period, not enough to impact small time-frame calculations we need, but significant over the millions of years of earth’s history.
[oldie from the hard drive]
http://www.unibg.it/convegni/NEW_SCENARIOS/Abstracts/Barbiero1.htm
Flavio Barbiero, Centro Camuno di Studi Preistorici, Capodiponte, Italy
CHANGES IN THE ROTATION AXIS OF EARTH AFTER ASTEROID OR COMETARY IMPACTS
Evidence exists that the poles have changed position during the recent past in a very rapid way - in a matter of days. This possibility, however, so far has been disregarded by official science on the basis that such a phenomenon is thought to be physically impossible: no mechanism is known and no energy capable of provoking it. The hypothesis that the inclination of the terrestrial axis in relation to the ecliptic and the position of the poles might change has however been taken into consideration since last century. Some of the greatest scientists of the time, including J.C.Maxwell and Sir George Darwin, considered this problem but decided that the stabilising effect of the equatorial bulge was so great that no conceivable force originating within the Earth could lead to a shifting of the axis, except for the collision with another planet.
They did not take into account, however, the phenomena of instability which could occur to an Earth-like gyroscope, consisting of a plastic shell, easily deformed by centrifugal forces, covered by freely-moving liquids - the only body of this kind in the solar system.
Our work shows that the impact of extraterrestrial objects as small as an Apollo class asteroid could “trigger” a process which in a matter of days would cause a “reshaping” of the equatorial bulge around a different axis, inducing therefore a shift of the poles and a change of the tilt. In order to trigger the process, the peak value of the torque developed by the impact has to overtake a “threshold” value, equal to the stabilizing torque developed by the equatorial bulge. A rough calculation shows that the threshold value can be reached during the impact with a body much smaller than a one-km-sized asteroid.
A shift of the poles would cause world-wide destructive phenomena such as: earthquakes and volcanic activity in all areas interested by adjustments of the crust; violent winds and torrential rains, with unprecedented floods all over the world; wide fluctuations of the oceans’ level, with subsequent temporary submersion of large parts of the continents; perturbation of the magnetic field. On top of that, there would be permanent changes of the climate, due on one side to the shift of the poles (and therefore to a change of latitude of many regions, deviation of oceanic and atmospheric currents and so on); on the other side to the change of the tilt, with subsequent modification of the seasonal pattern.
A shift of the poles occurring at the end of Pleistocene, with all its related destructive phenomena, could explain coherently the climatic situation before that date, and the situation observed after that date, as well as ancient traditions about a world-wide catastrophe.
Nope, not true, or a whole bunch would no longer be on here.
http://www.freerepublic.com/focus/bloggers/2639823/posts?page=52#52
Whew! Thank you, SunkenCiv. My recall diminishes as I age but to forget something that significant would have bothered me.
How did your SciencePub/Marsland Press get the same address as Brookdale University Hospital Medical Center?
See post #69.
My pleasure. :’)
Probably was one hell of an impact. ;’)
It’s nice to hear what really happened to Atlantis, finally.
Figure 4. Drake’s Passage Opening, is interesting.
I thought I understood until I read the comments. Gee whiz. Science, existentialism, astronomy, philosophy, nihilism, religion, phew!
Nice ping you got there.
If the Earth is a-rockin’ don’t come a-knockin’
I’m a Physicist by education, but fancy myself as an amateur archeo-astronomer. It’s my latest intellectual addiction - particularly Sumerian astronomy.
To get the flavor of the tome, go to the second tabulation on the link and click Cancer, one of the oldest and most cherished zodiac signs by the ancients (you'll soon see why). Please take the 20 minutes or so to read this one entry, for you'll see a general discription of the star name, by many cultures, and the mythology surrounding each. Infused with commentary regarding historical reference influenced by the asterism. Then a review of each star of the asterism and the significance of culture, society and science.
Right up your alley, I would think.
So, the Scorpios should actually be Librans, or the Librans Scorpios. And such very different personality types. ;-)
I still think the Firestone et al book does a better job of explaining the disaster at the end of the Pleistocene.
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