The kilogram has the dubious distinction of being the only SI unit still based on a physical object; specifically, a metal cylinder kept in a vault in France. Plans are well underway to redefine the kilogram in mathematical terms instead, and to that end a team at the National Institute of Standards and Technology (NIST) has submitted a precise new calculation of a key formula.
.. Continue Reading Redefining the kilogram in terms of Planck’s constantCategory: Science
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from New Atlas http://ift.tt/2tHHioj
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