How does a ship determine its direction?

The order in which the tools appear is as follows:

1. Compass. The compass is mainly composed of a magnetic needle located in the center of the disk and a series of concentric circles. Each circle represents the ancient Chinese's understanding of a certain level of information in the large system of the universe. The Feng Shui compass is one of the four great inventions in ancient China, also known as the Feng Shui compass. It was first used in navigation and later in Feng Shui geography.

2. Charts. A nautical chart is a type of map that represents the mapping phenomenon of the ocean area. Because navigation requires specialized maps that accurately survey ocean waters and coastal features. Drawn according to a certain scale and projection method.

3. Compass. The main component of a compass is a magnetic needle that is mounted on an axis and can rotate freely. The magnetic needle acts on the earth's magnetic field