Many people feel extremely confused when they see the perfect circular ice disc spinning in the middle of the river.
Recently, a local named Jason Robinson recorded a perfect circular tape disc image spinning in the middle of the riverbed in Michigan, USA.
Many people think that this is a product created by human hands, but the truth – it is a completely natural phenomenon.
We know that this is not the first time that this ice circle phenomenon has appeared, but they have been known for more than a decade.
However, it was only recently that scientists found an explanation for this spinning ice disc phenomenon.
Initially, experts believed that this spinning disk of ice was created by the eddies of the rivers that helped push the ice.
But after performing several computer simulations, the vortex was unable to propel large rotating ice discs, some of which were ice discs with a diameter of over 16 meters.
Using a laboratory plate and magnets to simulate glacier conditions, researchers at the University of Liège (Belgium) found that blocks of ice began to rotate even when it was not. there was no whirlpool in the river. That is, the rotation is caused by the melting of the ice itself, and not by the eddies of the river.
This phenomenon often occurs in river sections, where rapidly moving water creates a “rotational shear” force, which breaks the iceberg and causes it to spin. As the ice disc spins, it crushes and smooths the surrounding ice into a perfect circular shape.
“It’s a combination of the cold air that swept through the area last week and the eddy in the river,” said Allen Schlag, hydrologist at the National Weather Service in Bismarck and Grand Forks meteorologist Greg Gust. .
From there, floating chunks of ice get caught in the whirlpool and begin to spin. They are absolutely beautiful. “
