الاثنين، 5 نوفمبر 2018

Scientists Are About to Redefine the Kilogram


The kilogram is currently controlled by a metal slug in a French vault, but its days of importance are numbered.

The post Scientists Are About to Redefine the Kilogram appeared first on ExtremeTech.



sourse ExtremeTechExtremeTech https://ift.tt/2zyoBDJ

ليست هناك تعليقات:

إرسال تعليق