Nordic Ice Skating on Thin, Black Ice in Sweden Is an Art and a Science

A Swedish mathematician skates on thin, black ice both as a thrilling pastime and a beautiful acoustic experience. Here's how he does it (without falling in).
A Swedish mathematician skates on thin, black ice both as a thrilling pastime and a beautiful acoustic experience. Here's how he does it (without falling in).

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Nordic Ice Skating on Thin, Black Ice in Sweden Is an Art and a Science

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