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Old 13-01-2018, 09:58 PM
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skysurfer
Dark sky rules !

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Equator shifted 30 degrees 12500 years ago ?

See this video.

https://www.youtube.com/watch?v=DpNI2FtCgtc

I don't believe that. When it were true, Cairo would be right on the equator (shown in video) and the same applies to New Caledonia. Australia would be just still completely in the southern hemisphere with the northern tip of Qld hitting the equator and Europe in the northern tropic zone and Antarctica not within the arctic circles at all.
However there are no signs of any ancient tropical climate in 10500 BC in Europe and no vegetation or larger mammals in Antarctica as well.

The video also talks about 'celestial pole shift', but that is indeed true, we call this precession. But that has no influence on the location of the terrestal poles or equator or climate.
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Old 14-01-2018, 02:00 PM
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tonybarry (Tony)
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The main issue with the proposition is the absolutely enormous amount of energy required to alter the spin axis of the earth. The rotational inertia is immense and the necessary energy could not be applied to the globe easily.

The only forces we know that could do the job would be asteroid impacts, at Late Heavy Bombardment levels.

https://en.wikipedia.org/wiki/Late_Heavy_Bombardment

Given that this would provide a comprehensive extinction of life on earth, I don't think it could have happened, and likely not since the Cambrian Era when life is first known to have existed here.

The current understandings of Planet Nine solar system mechanics indicate that it *may* be possible for large objects in highly inclined orbits to alter the plane of the Solar System with respect to the Sun's equator; but this is not confirmed, and in any case does not work to change the spin axis of the planets.

Regards,
Tony Barry
WSAAG

Last edited by tonybarry; 14-01-2018 at 02:12 PM.
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Old 14-01-2018, 05:56 PM
bigjoe (Joe)
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Quote:
Originally Posted by tonybarry View Post
The main issue with the proposition is the absolutely enormous amount of energy required to alter the spin axis of the earth. The rotational inertia is immense and the necessary energy could not be applied to the globe easily.

The only forces we know that could do the job would be asteroid impacts, at Late Heavy Bombardment levels.

https://en.wikipedia.org/wiki/Late_Heavy_Bombardment

Given that this would provide a comprehensive extinction of life on earth, I don't think it could have happened, and likely not since the Cambrian Era when life is first known to have existed here.

The current understandings of Planet Nine solar system mechanics indicate that it *may* be possible for large objects in highly inclined orbits to alter the plane of the Solar System with respect to the Sun's equator; but this is not confirmed, and in any case does not work to change the spin axis of the planets.

Regards,
Tony Barry
WSAAG
Too True this Barry.
Earth at..
6x 10^24 KG, and Spinning so fast would indeed require incredible energy to change its orbit or equator, and be the end of any life.
bigjoe

Last edited by bigjoe; 14-01-2018 at 05:56 PM. Reason: Add
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