The Kilogram Is Putting on Weight

There's long been debate over the accuracy of the standardized kilogram. Now, though, scientists have shown once and for all that the lump of metal defining the unit of mass has been putting on some weight. More »

Source: http://feeds.gawker.com/~r/gizmodo/full/~3/H1739UjV0yc/the-kilogram-is-putting-on-weight

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