ESSE 3020 Lecture Notes - Chandler Wobble, Rotational Symmetry, The Fluid

• School: York University
• Department: Earth, Space Science and Engineering
• Course: ESSE 3020
• Professor: Anthony Anthony

Document Summary

The earth"s wobble is typically known as the chandler wobble. 305 days is the period for a rigid earth. Earth is not a solid, there is a part that is fluid. The fluid core in the rigid shell alters the wobble period of earth. The fct that the earth can deform makes it responsible for this property. Due to pole tides, there is inelasticity in the mantle. The pole tide brings it up to a few days(8 days) There is a ring of stars above the north pole. The path given is a beating of two wobbles-chandler and annual wobble. If there was no annual wobble, we would expect the path to come back to the same place after 435 days. Due to annual wobble, over 12 months, it isnt quite back to the same place. 12 months and 14 months, the lcm is ~70 months(12 months and 14 months, common multiple is 6 years)