Source: [[https://digital.nsta.org/publication/?m=13885&i=485530&view=articleBrowser&article_id=3048243&ver=html5|The Science Teacher]]

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===Related Resources===
  * [[http://www.hewittdrewit.com/Links/103_Speed_of_Light%C2%A0.html|Video from HewittDrewIt]]
  * [[https://conceptualacademy.com/course/conceptual-physics/264-transparent-materials|Video from Conceptual Academy]]