Easy Explained: Metric System
https://www.youtube.com/watch?v=gV99abJ6YJo&feature=youtu.be
Nerd Nite: Metric System Lecture
https://www.youtube.com/watch?v=1d3gAZ-Te3Y
Why the Metric system Rocks
https://www.youtube.com/watch?v=P_svqVB4LpY
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