It seems that all the countries have agreed upon the new definition of Kilogram.
After like the span of one hundred and thirty years, the definition of kilogram unit has witnessed a huge change. The unit of weighing things kilogram was previously defined using a platinum-iridium cylinder, called the “Le Grand K”, situated outside Paris had experienced some issues over time which requires some solution.
The representatives of sixty new nations have agreed upon a new definition for Kilogram at a consortium that was held yesterday at the General Conference on Weights and Measures held in Versailles—France.
The new definition would not be affecting the general practices, but this is still a much-awaited redefinition.
As per the Director of Research at the IUK’s National Physical Laboratory—Jan-Theodor Janssen the SI redefinition is a great achievement moment in the world of scientific measurement.
The new definition has completely redefined the unit which is now completely defined by a natural phenomenon. It is now being defined in terms of the Plank’s constant (h), so now the new value of kg is defined from Plank’s constant whose value is fixed at 6.626 07015 x 10-34 m2 s-1.
Previously, the kilogram unit was defined by a fixed weight placed inside a closed environment from which the various sample weights were taken. With time, however, many differences started to come out between the various samples and the standard.
Other than the kilogram, the units for kelvin, mole and the ampere have also changed. The Kelvin is now being defined from the Boltzmann constant (k) and the ampere is being defined from the elementary electrical charge (e).