Whenever winter comes, some cold places almost all the places where water is present will form thick ice cubes. Recently, a rare sight has appeared in the south long lake in Brainard, Minnesota, and a rotating ice circle has appeared on the surface of the lake.
▲ The picture shows the rotating ice circle in the lake, which looks like a huge pancake, but in fact, this position was originally made up of a small whirlpool that slowly became an ice cube because the water temperature reached minus 3 degrees.
▲ Some local people say they have lived here for nearly 60 years but have never seen such a magical phenomenon. From the picture, you can see that this ice circle is slowly getting bigger.
▲ This rotating ice circle is a very rare natural phenomenon, said John, an expert at the local observatory: Because the water flow forms a whirlpool, the level cannot form the ice surface at one time, so it will become larger and larger as a small part of the ice cubes formed in the whirlpool. To be able to see such a magical sight is really amazing to marvel at the power of nature!