#iteachphysics friends, here's a great energy conservation video for you to use in class. pic.twitter.com/QbsRH3QUai
— David Dahari (@_DavidDahari_) February 17, 2020
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#iteachphysics friends, here's a great energy conservation video for you to use in class. pic.twitter.com/QbsRH3QUai
— David Dahari (@_DavidDahari_) February 17, 2020