SME Times News Bureau | 20 May, 2019
In a landmark and
historic decision taken in the recent open session of the General Conference on
Weights and Measures (CGPM) at BIPM on 16 November 2018, has unanimously
adopted the resolution to redefine four of the seven base units, the kilogram
(SI unit of weight), Kelvin (SI unit of temperature), mole (SI unit of amount of
substance), and ampere (SI unit of current).
This decision has now
enabled scientists and researchers to base the SI units entirely on fundamental
properties of nature, which will ensure their ongoing refinement and
improvement for years to come.
constants are invariants of time and space and successfully replaced the
artifact based units, and aptly opened up the new era for quantum world by
linking all seven base units to fundamental constants/quantum standards.
The new SI is being
implemented worldwide from 20th May 2019 i.e. the World Metrology
Day. The World Metrology Day (WMD) is celebrated annually on this very day as
the Metre Convention was signed by representatives of seventeen nations on May
The Convention set the
framework for global collaboration in the science of measurement and in its
industrial, commercial and societal applications.
DG CSIR, Shri Shkehar C. Mande present on the
occasion congratulated the NPL in bringing out the new units and said that
quantum computing, artificial intelligence (AI), Industry 4.0, space enabled
communications, are some of the international challenges of the near future and
it is necessary for India, the fastest growing economy to make the triumphs to
meet the above challenges with the support of quantum metrology based quality
The whole metrology world, especially the National
Metrology Institutes (NMIs) are celebrating this year's WMD as mark for the new
beginning of metrology, based on constant of nature on a large scale. CSIR-NPL,
the NMI of India have kept the strides going in these fields and started the
R&D efforts in establishing the new SI, alongside the international
implementations from 20th May 2019.
On this historic day, CSIR-NPL
introduced redefined SI Units to nation in terms of constant of nature through
a series of events, delivering lectures, releasing theme; release of NPL’s
designed posters introducing redefined SI to nation highlighting fundamental
constant of nature and impact of metrology on all walks of human life, etc.