People are accustomed to living on land, but once the flood hits, it is troublesome. So smart people started looking for a buoy that could float on the water.
The materials used for the pontoon rig are simple, such as fallen trunks, fallen branches, and bamboo poles and reeds everywhere. Trunks, bamboo poles, reeds, etc., have small buoyancy and need to be bundled for use; gourds have the advantages of light body, large buoyancy, and strong water resistance, so they are often used by ancients. The ancients generally connected three or four gourds in series and tied them around their waists. After entering the water, they were half sinking and floating. At this time, they could use their hands and feet to paddle forward. In ancient times, this kind of float was called a waist boat.
Humans have used branches, gourds and other materials as buoys for a long time. Before the founding of the People s Republic of China, some villages near the Yellow River in Shanxi Province, and some landowners owned land across the Yellow River. When the farming season began, they were called long workers and tenants to work across the river. Of course, they could swim easily. More than a few gourds were tied together, and people rode on it to get to and from the banks of the Yellow River . Since the rise of canoes and wooden boats, although buoys are also used by people, they are not the main tools for people on the water.