Tag: IPK

The Long-lasting Definition of Kilogram has Changed

The Long-lasting Definition of Kilogram has Changed

Scientists have replaced the platinum-iridium cylinder with the Planck Constant to give birth to a new standard of kilogram. The world’s standard definition of the kilogram has finally been altered, after representatives from 60 countries voted in favor of redefining the International System of Units (SI) for mass. Since 1889, a platinum-iridium alloy cylinder, nicknamed…

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