Energy Defined Published on Nov 27, 2012 Not all forms of energy are the same. Some are useful and efficient while others are not. www.pbs.org/wgbh/nova/labs Source: https://www.youtube.com/watch?v=pb6-DcMEYq4Video: on Tue, 2014-09-09 20:34 champa
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Accessed on 9/9/14 on youtube
Accessed on 9/9/14 on youtube