Copenhagen. The Nobel Prize medals, dissolved in acid (with nitric and hydrochloric acids) to hide them from the Nazis, and then remade immediately after the war. With the same gold. When Gyorgy Hevesy returned from Stockholm, where he had taken refuge, he found the beaker full of the orange liquid still intact. It was nitric and hydrochloric acid, in which the gold from Franck and von Laue’s Nobel medals was dissolved. The gold in the liquid was precipitated, sent to Stockholm to be reprinted on two medals, and returned to their rightful owners.
