Hi I don't understand the polarization of EM waves. I have same questions about that. 1-) As you know, EM wave is consist of both electric and magnetic field/wave. And there is 90 degree between them. Is that possible to separate these two fields or waves? I mean is that rule: If there is a magnetic wave so there must be a electric wave and vice versa? 2-) Related with my first question, what is polarization of Em wave? For vertical polarization, is magnetic field eliminated or for horizontal polarization, is electric field? 3-) To be able to imagine polarization I am thinking of 3d movies. How can one em wave or light be vertical or horizontal? What makes them vertical or horizontal or none of them? Is human eye capable of notice the differences between vertical or horizontal polarized or non-polarized light? Thanks.