jovichmk said:Well it depends of the direction of the magnetic field i think. If the outer magnetic field is the same direction as the
stator fields it should increase total outer magnetic field and also increase rotation. If the outer magnetic field( i mean from the brown dwarf) is with oposite direction then it should decrease total outer magnetic field and also slow the
rotation.
Well, the rotation is slowing for both Earth and Venus; Venus's day is 6.5 mins longer than it was 16 years ago, and Earth has gained a second of its year in seven years. And this other article says that the Earth's magnetic field is fading:
_http://news.nationalgeographic.com/news/2004/09/0909_040909_earthmagfield.html
Might be related: Earth's mantle flows faster than previously thought:
_http://www.physorg.com/news193507494.html