Check out this history of the metric system and learn why it’s important (if you don’t already know)!
From Matt Anticole on TED-Ed.
For the majority of recorded human history, units like the weight of a grain or the length of a hand weren’t exact and varied from place to place. Now, consistent measurements are such an integral part of our daily lives that it’s hard to appreciate what a major accomplishment for humanity they’ve been. Matt Anticole traces the wild history of the metric system.
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