posted on Nov, 10 2004 @ 05:03 AM
Look at it like this.
A moving magnetic field may not have a pulse to it. (The Piece of the sun that was ejected as a CME)
The Earths magnetic field may not have a pulse either..
But like a steady wind on earth, blowing across a field of wheat, there is a pulsing movement , like waves, in the wheat field. Neither the wind or
the wheat has it's own pulse. But you do see the plants flexing, as they bend over, then straighten out. That Rythm is the RESONANCE of the wheat,
with that particular speed of wind.
Same with the Aurora.. The moving magnetic field interacts with the Earths, creating waves in the field, The fields wobble and flex, like the wheat
The speed of the pulsing is related to the speed, and strength of the interacting fields.
Make any sense?