Carl Auer von Welsbach: Chemist, Inventor, Entrepreneur

Particular attention is given to his pioneering work on the rare earth elements, including the discovery of four new elements, which allowed him to develop new materials, to invent new useful devices and to establish major industries.

O atentie deosebita este acordata lucrarii sale de pionierat asupra elementelor din pamantul rar, inclusiv descoperirea a patru elemente noi, care i-au permis sa dezvolte noi materiale, sa inventeze noi dispozitive utile si sa infiinteze industrii majore.