DW Tomorrow Today August 26, 2019 04:49:00
A new set of scales together with germany's national institute they've developed 2 prototypes based on the new definition of the kilogram. for 130 years a metal cylinder in paris was the world's benchmark of the kilogram but not anymore as you know conversely. the kilogram was the last remaining unit based on a physical object a piece of metal and all other units are based on constants of nature. and. because of this redefinition weights are no longer derived from the international prototype kilogram stored in a safe in paris. but instead they're derived from a fundamental constant constant bu...
Source: archive.org