pH7
Key Veteran
Location: Sterling Heights, MI - USA
| The method outlined by george0079 is exactly right and it is the method I use. If you want to know why: Opposite poles attract. (We learned this a long time ago.) So, when you stick them together, a North and South are on the inside and a North and South are on the outside. When you mark the outside faces you are marking one North and one South. (It doesn't matter which is which.) Now when you put them in place with both marks showing, one is North and one is South. Guaranteed to work. |
