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Enlace: http://www.exploratorium.edu/hockey/index.html

Descripción: Exploratorium. The museum of science, art and human perception.
«One of the most unique aspects of hockey is the surface on which the game is played: the ice itself. The players talk about the quality of the ice; they've helped coin the terms "fast ice" and "slow ice." Scientists, on the other hand, are still studying the chemistry of the ice. In just the last few years, there have been major discoveries which have changed our understanding about the nature of the ice.»