Labels:apron | clock | crt screen | monitor | person | screen | sky | sun | vase OCR: PR E C E 55 ON The shifting in space of the direction of the Earth's rotation axis caused by the pull of the Moon pue Sun on the Earth's equatorial bulge. This shifting also causes the shifting of the celestial poles The Earth' axis fully precesses in about 26 000 vears Any spinning object can precess. top precesses spins unless perfectly vertical PRECESSION years
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