How to use a magnet to tell the direction
Magnets are composed of atoms such as iron, cobalt, and nickel. The internal structure of atoms is relatively special, and they have magnetic moments themselves. We often use them to attract small things. We all know that magnets are used to attract things. In fact, they have another function, which is to guide the way.
In ancient China, people used this special function of magnets to invent Sinan, and then evolved into a compass to avoid getting lost in the forest. Here, we'll show you some tips so you can find your way home if you get lost. The north pole of the magnetic needle points to the geographic north pole to distinguish directions.
We can hang the midpoint of the bar magnet with a thin wire. When it is stationary, its ends point north and south of the earth.
Think of the earth as a big magnet, the earth's magnetic north pole is the geographic S pole, and the geomagnetic south pole is the geographic N pole. Between magnets and magnets, like poles repel each other, and opposite poles attract each other. This means, that the compass points to the geographic north/south, in fact, it points to the magnetic south/north.
