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Monday, January 07, 2013
The Two-Way
Kilograms With Weight Problems May Get High-Tech Cleanings
January 7, 2013 It's important to science and trade that a kilogram in one part of the world weigh the same as others. But particles in the air may be adding microscopic amounts of weight to some of the "official" kilograms around the world. Scientists have a new method of cleaning those weights.