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New Lesson For Physics Students: India, World Adopts New Definitions For Kilogram, Ampere, Mole And Kelvin
Bell jar display of prototype kilogram replica (National Institute of Standards and Technology/Wikimedia Commons)
The new definitions of the four base units - kilogram, kelvin, mole and ampere - were adopted by India and rest of the world on Monday (20 May) on the occasion of World Metrology Day.
On 16 November 2018, the International Bureau of Weights and Measures ( with BIPM as French acronym), that has 60 member countries, had voted for redefining of the International System of Units (SI) of mass, temperature, amount of substance and electric current at the General Conference for Weights and Measures in Versailles, France.
In a statement released on Monday (20 May), Council of Scientific and Industrial Research’s National Physical Laboratory (CSIR-NPL) said, “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…release of NPL’s designed posters introducing redefined SI to nation highlighting a fundamental constant of nature and impact of metrology on all walks of human life,”
The CSIR-NPL has sent the new definitions to the Ministry of Human Resource Development (MHRD) for the engineering course syllabus and to National Council of Educational Research and Training for adoption in schools.
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