Which direction does the red end of the compass point? Where does the red end of the compass point on the map?

The red end of the compass points to the north of the earth, that is, the North Pole. The N pole of the small magnetic needle is attracted by the S pole of the earth, so the direction pointing to the S pole of the geomagnetic field is the N pole of the small magnetic needle, that is, the north pole of the compass. In fact, the modern red and white needle compass refers to the north needle, because the colored part refers to the north. But Chinese is customarily called compass, which evolved from Sina. The description of Sina in ancient books is a guide to the spoon handle, not that the spoon surface points to the north, suggesting that the spoon handle points to the front in cognition.

Compass introduction

Compass, called Sina in ancient times, is mainly composed of magnetic needles installed on the shaft. Under the action of natural geomagnetic field, the magnetic needle can rotate freely and keep in the tangential direction of magnetic meridian. The south pole of the magnetic needle points to the geographical south pole, so this property can be used to identify the direction.

Compasses are often used in navigation, geodesy, travel and military affairs. The invention of the compass with physical direction indication has three parts, namely Sina, compass and magnetic needle, all of which belong to the invention of China. According to ancient mine records, it first appeared in the Cishan area during the Warring States Period.

Compass is the result of China ancient working people's understanding of magnet magnetism in long-term practice. As one of four great inventions of ancient china, its invention has played an inestimable role in the development of human science, technology and civilization. In ancient China, the compass was first used for rituals, etiquette, military affairs and divination, and to determine the orientation when looking at Feng Shui.