Why a change in the kilogram’s definition to natural constant will be better for technology, retail and health? Discuss its advantages. (150 Words)
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K. V. A 5 years
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IAS Parliament 5 years
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IAS Parliament 5 years
KEY POINTS
· Scientists have long stressed that the fundamental units should be defined in terms of natural constants.
· Using a machine called a Kibble balance, in which the weight of a test mass is offset by an electromagnetic force, the value of the Planck constant was fixed, the kilogram was redefined, and the date for the new definition was fixed for May 20, 2019
· Planck constant comes in. It has been measured precisely at 6.626069… × 10^(-34) kilograms per second per square metre. With the second and the metre already defined, a very precise definition for the kilogram follows.
· Scientists have had to create very precise devices to measure Planck's constant with a high enough degree of accuracy.
· For astronomers calculating the movements of stars and galaxies or for pharmacologists trying to define doses of medications sown to the molecule, the new standard of measurement could change the way they work.
Advantages
· Change in definitions will result in uniform & worldwide accessible SI system for international trade.
· Creation of high- technology manufacturing.
· Better human health due to increase in efficacy of drugs
· Icrease safety, protection of environment, global climate studies & basic science underpinning these.
