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Published online 13 November 2001 | Nature | doi:10.1038/news011115-3
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Turbulence toughens bones
Calm conditions could explain why bone is lost in space.
A lack of turbulence may be what weakens astronauts' bones. Xiang-Yang Liu of the National University of Singapore has found that calcium carbonate, a mineral similar to the hard part of bone, crystallizes very differently in the calm of almost zero gravity1.
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