severak
17.11.2018 00:55:57
Kilogram Redefined. The Metric System Overhaul Is Complete
The platinum-iridium cylinder has been scrapped, and the kilogram will now be determined by the Planck constant.
severak
17.11.2018 00:55:57
The platinum-iridium cylinder has been scrapped, and the kilogram will now be determined by the Planck constant.