Living with IT
Tuesday, July 10, 2012
The Not-So-Perfect Kilogram and Why the Metric System Might Be Screwed - Mental Floss
http://www.mentalfloss.com/blogs/archives/132813
The Not-So-Perfect Kilogram and Why the Metric System Might Be Screwed - Mental Floss http://buff.ly/RzXhYS
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