Some disjointed thoughts... 1. Is our Earth's magnetic field due to the rotation of our Moon? 2. Can we jump start Moon's magnetic field by spinning a 10 ton object in orbit? May take 1000 years... 3. Can we jump start Moon's magnetic field by artificially creating a coil around the moon and connecting it to a solar or nuclear battery? Since Earth is protected by only one gauss, it should not take too many turns and amps... 4. Same ideas for Mars?
No. No. No. Same answers. Earth has a relatively strong magnetic field because of its relatively fast rotation rate, its liquid metallic core, and its plate tectonics. The Moon rotates slowly, has a solid core, and never had plate tectonics. Mars spins at about the same rate as the Earth but its core long ago froze solid and its plate tectonics, if it ever had any, ceased.
the magnetic field of any planet or stars must be started with the mass of the object. It is amazing that the static mass can generate free energy itself without any interference. Mass generate free gravity energy, heat energy, magnetic force that can be harvested and converted to electricity. It is so amazing...
The magnetic field comes from the earths molten Iron core and it rotation. We would be able to jump start any planet that had no field with our current Tech. Nor do I feel we every will what would be the purpose to expended that much time and effort into something that will eventually stop again anyway if it ever had it to begin with. It is far cheaper and more likely to just find another planet that sustains life and move there or Tera form a dead plant/celestial object with buildings rather then trying to change the object it's self.
Recent discoveries suggest that the solid inner core itself is composed of layers, separated by a transition zone about 250 to 400 km thick. Because the inner core is not rigidly connected to Earth's solid mantle, the possibility that it rotates slightly faster or slower than the rest of Earth has long been entertained.In the 1990s, seismologists made various claims about detecting this kind of super-rotation by observing changes in the characteristics of seismic waves passing through the inner core over several decades, using the aforementioned property that it transmits waves faster in some directions. Estimates of this super-rotation are around one degree of extra rotation per year, although others have concluded it is rotating more slowly than the rest of Earth by a similar amount. That is why, I thought the dynamo effect is from the differential rotation of the inner core. I could be wrong....
