The Roundest Object Ever and How It Will Change the World [Science Video]

Science has had a bit of a problem since the 1940s: how do we standardize the kilogram if our standard kilogram varies in mass over time? One team has started the Avogadro Project, which seeks to solve the variable kilogram by creating a new standard. Helping them to do this is a silicon sphere, the world’s roundest object.

via bits and pieces


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