cool science factoid

I woke up this morning with nothing trad to say so I thought I'd share with you something interesting that I learned while watching the old boob tube a couple of years ago. This won't take long.

You know the earth is hot, right? Lots of heavy metals swirling around inside it. Well it's the swirling around of these heavy metals that creates the earth's magnetic field. And the earth's magnetic field has the important task of deflecting solar wind away from the surface of the planet. This is critical because solar wind, if not for the protective powers of the magnetic field, would quickly sweep away all of the earth's atmosphere and moisture. So a hot earth is a living earth and a cold earth is a dead earth. Of course, the earth is cooling off very, very slowly, but we probably have about a billion years before we have to start worrying.

Thanks for reading, if anyone did. Check back tomorrow for Trad Lifestyle Blogging.