Interesting read I saw a similar post about this from July: https://www.washingtonpost.com/news/speaking-of-science/wp/2017/07/05/scientists-are-about-to-chang

Interesting read I saw a similar post about this from July: https://www.washingtonpost.com/news/speaking-of-science/wp/2017/07/05/scientists-are-about-to-change-what-a-kilogram-is-thats-massive/?utm_term=.d8dff516db82 https://www.washingtonpost.com/news/speaking-of-science/wp/2... Redefining mass based on an idea as opposed to a physical object took me some time to get my head around.