Ahh, interesting. Then I retract that particular statement!
Still; anyone planning to send me their valuables?
Originally posted by OscarOriginally posted by Coasterkidmwm
Glaciers control the Moon's orbit indirectly
prove it!
Mass has a direct affect on the force of gravity; the greater the mass of an object, the greater its attractive force will be. Water has a lot of mass; there is a lot of frozen water in a glacier; thus slightly affecting the Earth's gravitational pull at that specific point; as the moon passes, it's orbit is slightly affected as it is pulled on very slightly harder by the Earth than it otherwise would be at that specific point. (This could very well be false lol)
The movement of water also has other effects - especially since Humans came along. First, imagine an ice skater/dancer spinning on the ice, if they want to spin faster they hold their arms in tight to their body and they begin to spin faster. If, however, they want to spin slower, they spread their arms, which moves mass away from the centre of the rotation and thanks to the preservation of angular momentum; the rotation slows down. Now, imagine the case of a massive reservoir, like behind the Hoover Damn, for example; a giant mass of water is now stored 100's of feet higher (further from the Earth's centre of rotation) than it would naturally be - this has the exact same effect as with the dancer's arms and actually very slightly slows the Earth's rotation. As a result of all the resevoirs across the globe, especially with the addition of some of China's monster reservoirs; a year on Earth is a fraction of a second longer than it was 100 years ago. This is also true of big glaciers, though, and as they move of huge time periods, so does the rotation of Earth slightly change - this also has an affect on the Moon's own orbit.