Project Gutenberg on Nostr: #OTD in 1889. The General Conference on Weights and Measures (CGPM) defines the ...
#OTD in 1889.
The General Conference on Weights and Measures (CGPM) defines the length of a metre.
The history of the metre starts with the Scientific Revolution that is considered to have begun with Nicolaus Copernicus's publication of De revolutionibus orbium coelestium in 1543. The Mètre des Archives & its copies were replaced from 1889 at the initiative of the International Geodetic Association by 30 platinum-iridium bars kept across the globe.
https://en.wikipedia.org/wiki/History_of_the_metre#
#science #metrology
The General Conference on Weights and Measures (CGPM) defines the length of a metre.
The history of the metre starts with the Scientific Revolution that is considered to have begun with Nicolaus Copernicus's publication of De revolutionibus orbium coelestium in 1543. The Mètre des Archives & its copies were replaced from 1889 at the initiative of the International Geodetic Association by 30 platinum-iridium bars kept across the globe.
https://en.wikipedia.org/wiki/History_of_the_metre#
#science #metrology