What's the difference between a sundial and a sundial?

1. Structure: The sundial consists of a vertical table and a horizontal GUI, and the solar terms are determined by the length of the sun's projection on Gui at noon, while the sundial consists of a dial pointer and a dial. The angle and position of dial pointer and dial surface have an influence on its timing function.

2. Function: The sundial has always been one of the most important astronomical instruments in ancient China. Solar terms are determined by the length of the sun's projection on the sun's surface at noon, and the sundial is an instrument for observing the sun's shadow and timing. According to the shadow of the sundial needle, what time of day can be judged.