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April 02, 2005
World's most sensitive scales weigh a zeptogram
NewScientist: “The world’s most sensitive scales can now detect a cluster of xenon atoms a billion, trillion times lighter than a gram. A zeptogram 10^(-21) g is roughly the mass of a single protein molecule and its detection has set a new record.”
Posted by Oleg Ivrii at April 2, 2005 12:53 PM