Ewa reactor

The EWA Reactor was Poland's first research nuclear reactor. The name of the reactor is an acronym derived from the first letters of the Polish words: Eksperymentalny (Experimental), Wodny (Water), and Atomowy (Atomic).

The image of the reactor was placed on the reverse side of the 20,000 Polish złoty banknote. On the front of the banknote, there is an image of Maria Skłodowska-Curie, a Polish and naturalised-French physicist and chemist who conducted pioneering research on radioactivity. She was the first woman to receive the Nobel Prize in 1903.