Space/Science — HabitableZone

Space/Science » in reply to You're wong...... Again.

Re: You're wong...... Again. And technically so are you.
nathan — (archived)

Actually it has been known for some time now that the Earth is not heated internally through either compression (ie. like the core of the sun) or by tidal forces from external gravitational effect (such as those from the sun). The core fo the Earth remains molten due to the decay of radioactive particles and the heat that they release.

The rotation (stirring, in your parlance) has nothing to do with the Sun either, except for the fact that the Sun's evolution happened in a spinning disk oc gas, hence the initial rotational force came from the Sun. The speedy rotation of the Earth's molten ferromagnetic core (which causes the Earth's magnetic fields to form) is due simply to the fact that the core is more dense, and much smaller in diameter, than the earth's crust. What you should remember from "Physics 101" is that when you spin and pull your arms in, you spin faster, just like the earth's core.

The Sun has nothing to do with it, but neither does the moon for that matter.

Log in or register to post.

The whole thread (34 posts)