The world’s slowest whirlpool: Bizarre footage shows 50ft ice disk spinning unaided in freezing Russian waters
Monday, May 9, 2016 19:42
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by Charlie Moor
Mailonline
Video filmed in Omsk Oblast captured an amazing and rare phenomenon
Ice disk formed at a bend in the 100ft-wide river which was still and calm
Phenomenon occurs when some but not all of river water is frozen solid
Accelerating water creates a force called 'rotational shear' which twists ice
This bizarre footage shows a 50ft ice disk slowly spinning around in a freezing Russian river.
The video, filmed in Omsk Oblast, captured an amazing and rare phenomenon where disks of frozen water can build up in rivers and rotate.
Eerie: The disk formed at a bend in the 100ft-wide river which was otherwise totally still and calm
The disk formed at a bend in the 100ft-wide river which was otherwise totally still and calm.
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Source: http://www.riseearth.com/2016/05/the-worlds-slowest-whirlpool-bizarre.html
