Why the metric system matters - Matt Anticole

source: TED-Ed    2016年7月21日
View full lesson: http://ed.ted.com/lessons/why-the-met...
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.
Lesson by Matt Anticole, animation by Globizco.

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