Why does the lake freeze first?

Water will freeze at zero, and the lake will freeze because of the low temperature outside. The temperature at the bottom of the lake is higher than that at the bottom of the lake, so the flowing water will not freeze.

In most parts of China, there is icing after beginning of winter. Winter means the end, which means that the crops should be harvested after harvest. In ancient China, people used to regard beginning of winter as the beginning of winter.

Beginning of winter has three stages: when water begins to freeze, that is, water can already form ice; The second waiting place began to freeze, that is, the land began to freeze; Three, pheasants into the water for cockroaches, pheasants, pheasants and other large birds; Slug is a big clam.

After beginning of winter, there were few pheasants, but you can see big clams with similar lines and colors at the seaside. The ancients thought that pheasants would become giant clams after the arrival of early winter.

Extended data

The degree and area of extreme temperature are often not reflected in the average temperature map. According to the existing records, the absolute lowest temperature in the world appears in Vilho Jansk and Oymyakon in eastern Siberia, which are -69.8℃ and -73℃ respectively. 1962 The new lowest temperature in the world recorded in Antarctica is -90℃.

The absolute highest temperature in the world is 63℃ in Somalia. In China, the absolute maximum temperature appeared in Turpan, Xinjiang Uygur Autonomous Region, reaching 48.9℃. The absolute minimum temperature of Mohe River in Heilongjiang Province is -52.3℃,1Feb. 96813rd.