Ball and Ring: Rate of Expansion and Contraction

This video shows different rate of expansion and contraction of a brass ball and ring when they are heated. http://www.dlt.ncssm.edu

Please attribute this work as being created by the North Carolina School of Science and Mathematics. This work is licensed under Creative Commons CC-BY http://creativecommons.org/licenses/by/3.0

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http://amara.org/v/GAin/