Forming two forces or blocks totally (or radically) opposite. Split or split effect that causes one part to go to one end and another to the other. Formation of two very separate and irreconcilable parts. Try to be as distant as possible from others, go to the poles or to the ends. In physics it is an electrical effect in which the charged particles form a positive pole and a negative pole. It is also the term used to define the process of covering glass with a special film to allow clear vision in one direction and prevent or regulate it in the other (In one sense you can see and in another not).
