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"I don't know how big a milliliter is!" Check out more awesome BuzzFeedBlue videos! MUSIC London ... Virtually every country on the planet uses the
The
Why didn't the
The
How Americans Missed out on the
If you grew up in the
In 1975, the
... and Imperial at the same time how we
"I don't know how big a milliliter is!" Check out more awesome BuzzFeedBlue videos! http://bit.ly/YTbuzzfeedblue1 MUSIC London ...
Just three countries- the
Why isn't the
View full lesson: http://ed.ted.com/lessons/why-the-
Virtually every country on the planet uses the
Johnny Harris says Americans
Why
