The World's Roundest Object (and Why it Exists)
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The world's roundest object helps solve the longest running problem in measurement -- how to define the kilogram. A kilogram isn't what it used to be. Literally. The name, weight, and definition of a kilogram has been changing constantly since its invention, and the Avogadro Project looks to change that.
Additional Resources for you to Explore
The Bureau of International Weights and Measurements on Avogadro's Project.
NIST: Redefining the Kilogram
Live Science: Redefining the Kilogram
NIST: Redefining the Kilogram
Live Science: Redefining the Kilogram
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