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Reliability and validity - Kilogram gets a new definition

Geoff Riley

17th November 2018

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Scientists have voted to change the definition of a kilogram after more than 100 years. Read about it here.

The way the kilogram is measured may be about to change.

It's been redefined many times over the last 100 years but this could be the final time.

Aerospace engineer and physicist @MaxFagin explains more... 🤯#5LiveBreakfast pic.twitter.com/gAXaNgDdYO
— BBC Radio 5 Live (@bbc5live) November 16, 2018

The weight is over... Scientists are set to change the way the #kilogram is defined. https://t.co/0ygXVjVPBb pic.twitter.com/TB7GunWrBh
— BBC News Graphics (@BBCNewsGraphics) November 16, 2018

Definition of kilogram set to change https://t.co/kfyMHghJvu
— BBC Science News (@BBCScienceNews) November 16, 2018

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Geoff Riley

Geoff Riley FRSA has been teaching Economics for nearly forty years. He has over twenty years experience as Head of Economics at leading schools. He writes extensively and is a contributor and presenter on CPD and Revision conferences in the UK and overseas.

@tutor2uGeoff