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The new definition of Kilogram
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In this Bytes video learn about how a Kilogram used to be defined till now and what's the new definition of kilogram going to be like.

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Unacademy user
good morning sir.... very nice video
definition of time and meter has also changed.. so you can make on that too
mam I want to know about ""JEW'S"" and their history.
kg will b defined in terms of Plank's constant
  1. The new definition of KILOGRAM


  2. Since 1889, Le Grand K has been at the forefront of the international system of measuring weights.


  3. Since 1889, Le Grand K has been at the forefront of the international system of measuring weights. But the master kilogram and its copies were seen to change slightly as they deteriorated li


  4. How wrong is Le Grand K? The fluctuation is about 50 parts in a billion But no matter how tiny it is, the change can have significant consequences.


  5. So what's the new definition of kilogram going to be like?


  6. CONFER Recently some researchers met in Versailles and voted to get rid of the Le Grand K and define a kilogram in terms of an electric current. The decision was made at the General Conference on Weights and Measures. THAT EQUITY MAY PREVAIL AND M


  7. Electromagnets generate force and there's a clear connection between electricity and weight. So, in principle, kilogram or any other weight can now be defined, in terms of the amount of electricity needed to counteract the weight Since h is an incredibly small number, the research scientist Dr Bryan Kibble built a super- accurate set of scales to measure it


  8. By measuring the current running through the electromagnet to incredible precision The new system, now that it's been adopted, will allow anyone with a Kibble balance to check their weights anytime and anywhere.