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David Wilcock's bulshitFrom: Swedich Dragon
Subject: General
Date/Time 2008-03-27 14:11:12
Remote IP: 84.217.118.218
MessageHere is some explanation of the movements of the geographical north pole, defined by the rotation axis. Chandler Woble. From wikipedia
The North Pole, also known as the Geographic North Pole or Terrestrial North Pole, is, subject to the caveats explained below, defined as the point in the northern hemisphere where the Earth's axis of rotation meets the Earth's surface. It should not be confused with the North Magnetic Pole.
The Earth's axis of rotation – and hence the position of the North Pole – was commonly believed to be fixed (relative to the surface of the Earth) until, in the 18th century, the mathematician Leonhard Euler predicted that the axis might "wobble" slightly. Around the beginning of the 20th century astronomers noticed a small apparent "variation of latitude", as determined for a fixed point on Earth from the observation of stars. Part of this variation could be attributed to a wandering of the Pole across the Earth's surface, by a range of a few meters. The wandering has several periodic components and an irregular component. The component with a period of about 435 days is identified with the 8 month wandering predicted by Euler and is now called the Chandler wobble after its discoverer. This "wobble" means that a (fixed) definition of the Pole based on the axis of rotation is not useful when metre-scale precision is required.
The Chandler wobble is a small motion in the Earth's axis of rotation relative to the Earth's surface, which was discovered by American astronomer Seth Carlo Chandler in 1891. It amounts to 0.7 arcseconds (about 15 meters on the Earth's surface) and has a period of 433 days. This wobble combines with another wobble with a period of one year so that the total polar motion varies with a period of about 7 years. The Chandler wobble is an example of the kind of motion that can occur for a spinning object that is not a sphere; this is called a free nutation. Somewhat confusingly, the direction of the Earth's spin axis relative to the stars also varies with different periods, and these motions (caused by the tidal attraction of the Moon and Sun) are also called nutations, except for the slowest, which is the precession of the equinoxes.
A picture of chandler woble since 2005
http://hpiers.obspm.fr/eop-pc/products/combined/C04plot.php?date=2&dimx=600&dimy=450&graphe=12&year1=2005&month1=1&day1=1&year2=2027&month2=12&day2=31&langue=1&SUBMIT=Submit+request
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