Polarization and Polarity

[Tenet Nosce]

I am glad wikipedia is used to further your spiritual understanding.

That's pretty hilarious! You are right. Here are some more reliable sources:

http://hyperphysics.phy-astr.gsu.edu/hba...ferro.html

Ferromagnetism manifests itself in the fact that a small externally imposed magnetic field, say from a solenoid, can cause the magnetic domains to line up with each other and the material is said to be magnetized.

Ferromagnets will tend to stay magnetized to some extent after being subjected to an external magnetic field. This tendency to "remember their magnetic history" is called hysteresis.

Here's a good 15-page textbook summary for the more serious student.

http://media.wiley.com/product_data/exce...310322.pdf