Shape-shifting polymer pulls off amazing memory tricks - tech - 13 March 2010 - New Scientist: "CALL it the yoga polymer: Nafion, a material used in some fuel cells, has an unrivalled memory for contortions.
Tao Xie at General Motors in Warren, Michigan, has twisted and stretched a Nafion strip into three distinct shapes, and found that it will revert to each shape at the appropriate temperature."
Tuesday, March 16, 2010
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