| 11. | This genus is characterised by striae are very fine, densely packed, and situated parallel to the polar axis.
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| 12. | For the polar axis altitude adjustment, one can attempt to track a star low in the east or west.
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| 13. | During their investigations they also discovered polar motion, the movement of the Earth's polar axis relative to the crust.
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| 14. | In 1982, an expedition led by Sir Ranulph was the first successful circumnavigation of the globe on its polar axis.
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| 15. | A right-handed convention specifies a axis 90?to the east in the fundamental plane; the axis is the north polar axis.
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| 16. | The "'International Latitude Observatories "'were a system of ( originally ) six " wobble " of the Earth on its polar axis.
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| 17. | In reality, Earth is not exactly spherical, mainly because of its rotation around the polar axis that makes its shape slightly oblate.
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| 18. | A Coriolis effect, caused by the overall planetary rotation, tends to organize the flow into rolls aligned along the north-south polar axis.
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| 19. | The Earth's polar axis, and hence the solstices and equinoxes, precess with a period of about years in relation to the fixed stars.
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| 20. | The fixed point ( analogous to the origin of a ray from the pole in the fixed direction is the " polar axis ".
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