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【TED-Ed】How to visualize one part per million - Kim Preshoff + The TED-Ed Community
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小爸 posted on 2017/07/18Ever wondered what 'one part per million' actually looks like? This fun explainer uses awesome visual analogies, even referencing Harry Potter, to help you grasp tiny concentrations! You'll pick up on how to understand scale and everyday examples of these units.
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