Scientists are about to change what a kilogram is. That’s massive. - The Washington Post

https://www.washingtonpost.com/news/speaking-of-science/wp/2017/07/05/scientists-are-about-to-change-what-a-kilogram-is-thats-massive

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First saved: 2017-Jul-07 (Fri)
Last checked: 2017-Jul-07 (Fri), response 301