On the basis of electromagnetic attraction see how powerful and effective the dynamic is between the different types of polarity. The higher the number, the greater the compatibility* For an easy i.d. of types below click here *This does NOT mean they will not be attracted to one another. Couplings at the lower ends of the scales are often attracted to one another as they recognise themselves in the mirror and enjoy the comfort it brings. It’s just that they are then stuck in a rut. The exception to the rule is ‘0’ where with 0+ it’s like trying to push two magnets with positive polarity together – they just…