Oops. I accidentally missed the first week and a half of school. I thought this class started later than it actually did. I should have found out for sure. It is always hard to stay current when you start out behind. Though it doesnt seem like I have missed too much.
Today I must admit my mind was blown just a bit. For some reason I had never thought about the uniformity of the surface of the Earth. I suppose I have just always seen images of the Earth and accepted that smooth rounded shape as a pure elliptoid (I was already aware that the Earth bulged in the center). It just never occured to me that variations in the gravitational pull cause the Earth to have an extremely varried surface where the pull of gravity differs greatly between southern India and the Atlantic Ocean south of Iceland.