Photos of Tropic of Cancer Guangzhou Sign Tower

The main part of the sign tower is a concrete granite structure, the base part is an altar, and the arrangement of the floor stones adopts the Taoist gossip form. The tower body and the tower base are 30.4 meters in total, and the tower is 23.5 meters high, which is an upright rocket type. The bottom of the tower is spherical, with granite paved in the center, carved into a hemispherical outline, embedded in the center point with a 4 cm diameter brass column, and inlaid with thick copper bars in the east-west direction to indicate that the Tropic of Cancer points from this point to the east and the east of the earth, respectively. westward extension. The top of the tower is a hollow circular hole with a diameter of 120 meters held by a stainless steel cylinder for direct sunlight verification. Every year at noon on the summer solstice (12:26), the sun will directly hit the circular hole in the ball, projecting the light spot onto the spherical copper pillar at the bottom of the tower.