Sport: In curling 20-kg granite stones slide on an ice rink; t…

Question

Did you know? In curling 20-kg granite stones slide on an ice rink; team members sweep in front of the stone to influence it. The ice is not smooth but "pebbled" (small bumps). The stone has a unique property: it curls WITH its rotation rather than against, unlike normal spinning objects. Nobody knows exactly why.

Accepted Answer

In curling 20-kg granite stones slide on an ice rink; team members sweep in front of the stone to influence it. The ice is not smooth but "pebbled" (small bumps). The stone has a unique property: it curls WITH its rotation rather than against, unlike normal spinning objects. Nobody knows exactly why.

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