Gravity of Earth or (). Gravitational acceleration contributes to the total gravity acceleration, but other factors, such as the rotation of Earth, also contribute, and, therefore, affect the weight of the object. Gravity does not normally include the gravitational pull of the Moon and Sun, which are accounted for in terms of tidal effects. It is a vector (physics) quantity, whose direction coincides with a plumb bob. A non-rotating perfect sphere of uniform mass density, or whose density varies solely with distance from the centre (spherical symmetry), would produce a gravitational field of uniform magnitude at all points on its surface. The Earth
Under the Sun / Under the Moon Under the Sun / Under the Moon "Under the Sun" and "Under the Moon" are songs on the double-A side thirteenth single by Do As Infinity, released in 2002. The second A-side of this single, "Under the Moon", which is an extension song to "Under the Sun", was not included in the "True Song" album. The song "Under the Sun" was used in games and anime, and included on the Do As Infinity "Anime and Game Collection" compilation album (2015). Both songs were written by guitarist Dai Nagao who also wrote many of the band's hit songs, including "Yō no