|Paris, Vienna, Durham—Georges Urbain, Carl Auer von Welsbach, Charles James elements|
In 1907, Georges Urbain separated the mineral ytterbia into two oxides— neoytterbia and lutecia. In 1907, Carl Auer von Welsbach separated the mineral ytterbia into two oxides— aldebarania and cassiopeia. In 1907, Charles James separated the mineral ytterbia into two oxides— but he withdrew his publication. Urbain was the first to publish so the sixteenth rare earth was given the Roman name for Paris.
Atomic number 71
Catalyst, dopant, phosphor. Lutetium tantalate is the densest, stable white material. What do you say about that?
One way to tell the time was right is by the number of simultaneous discoveries. As though all at once a hundred ships sailed west from different eastern ports, none aware of the others but each gambling on the unexpected, one would suspect a hidden connection, even if only three made it to a distant shore.