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- I've talked a lot about precision and the inclinations I have not told you "why" this is happening...I am not going to go into the physics of it. That is a little bit
- beyond the discussion over here...but its a byproduct of the earth and sun's interactions with the Earth
- And with the fact that the earth is not a perfect sphere... So this is my little drawing of Earth. And let me put() the pole
- in here...North pole && South pole...It actually turns out that Earth...is fat'r than it is taller. So
- if you where to measure Earth's diameter along the equator, it's diameter along the equator -> it is
- 43 kilometers (approximately 27 miles) longer. than if ( you were to measure it's diamter from Pole ->
- to pole. and the fact that Earth has the "equatorial bulge" it's not a perfect sphere...Once again I
- will not go into the math here...;)
- 1/8 symmetric (sorry) of the Earth...that interaction between the Earth the pull() of that causes these
- long term cycles...this this this actual precision...I* guess are less ...and as we will see in the next
- video, these arent the only types of changes we have...the elipse...Earth's orbit actual rotates over
- time...two interactions with earth's orbit...and once again...it's one of those things that happens over
- thousands and thousands of years...So all of these changes More fat than it is tall those interactions
- between the gravity of the Earth of the Moon && Earth's orbit as a whole changes because of interactions

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