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From PBS:

The kilogram — anywhere in the world, for any purpose — is based on the exact weight of a golf-ball-sized chunk of platinum and iridium stored under three glass bell jars in a vault in an ornate building outside of Paris. Accessing the vault requires three people with three separate keys and the oversight of the Bureau Internationale des Poids et Mesures, the international organization that oversees the International System of Units.

Despite all of this security, in the 129 years since the International Prototype of the Kilogram was forged, polished and sanctioned as an artifact of measurement, it seems to have lost a tiny amount of material.

[...] On Friday, metrologists — people who study the science of measurements — and representatives from 57 nations will gather in a conference room in Versailles, France to redefine the kilogram. In other words: the way we weigh the world is about to change.

Also at Smithsonian, New Atlas, and Nature.

Related: International Prototype of the Kilogram Soon to Become Obsolete

Original Submission

1. "PBS" - https://www.pbs.org/newshour/science/its-a-massive-change-scientists-redefine-the-kilogram
2. "Smithsonian" - https://www.smithsonianmag.com/science-nature/redefine-kilogram-180970798/
3. "New Atlas" - https://newatlas.com/kilogram-unit-measurements-redefined/57210/
4. "Nature" - https://www.nature.com/articles/d41586-018-07424-8
5. "International Prototype of the Kilogram Soon to Become Obsolete" - https://soylentnews.org/article.pl?sid=18/11/06/0037222
6. "Original Submission" - https://soylentnews.org/submit.pl?op=viewsub&subid=30140

printed from SoylentNews, The New Definition of the Kilogram Will Change the Way We Weigh Everything on 2024-04-25 13:10:50