Jeez, heavy stuff. Cosmic rays are cool, make a cloud chamber and climb to the tallest mountain you can find and you'll see them zooming through the vapor.
Stick a magnet in there and you'll see negative and positive charged ones.
Some people say that the magnetic poles of the earth are due to switch anytime. They say Mars' ultimate downfall was when it's magnetic field got too weak and the solar wind blew it's atmosphere away.
doomed! doomed I tells ya!
