CNNOut with the old kilogram, in with the new -- scientists introduce more accurate measureMay 20, 2019more_vert
Phys.orgAdieu, Le Grand K: The kilogram to be redefined for the first time in 130 yearsMay 20, 2019Deborah NetburnBy Deborah Netburnmore_vert
ScienceAlertTomorrow The Definition of The Kilogram Will Change Forever. Here's What That Really MeansMay 19, 2019more_vert