Did You Know?
The first General Conference on Weights and Measures (CGPM) defines the length of a meter as the distance between two lines on a standard bar of an alloy of platinum with ten percent iridium, measured at the melting point of ice
ncG1vNJzZmivp6x7sLrToaCsnJGue6S7zGibmrFfqLKxwMSmmZ6qX2eF