refer to question below for more information.
what the quartz means is the quartz nail. No, a quartz nail is not the most useful to make a compass. A small iron nail is useful to help make a simple compass
Iron.
A magnet.
A small iron nail
A compass is an awesome travel symbol. Can be as simple or as elaborate as you like.
simple slide it on the launcher grip
From an Engineering standpoint, it is called a BEARING. In a cheap compass it is a simple PINPOINT in the Base, and a CUP on the bottom of the Needle.
A magnetic needle meter, or a simple compass.
a compass
The simple truth is that they are still in wide use and probably always will be.
A magnetic compass is a simple machine that woks with the help of a magnet.
well babe its simple derling buy a compass