Danube Sinkhole Danube Sinkhole The Danube Sinkhole ( or ) is an incipient underground stream capture in the Upper Danube Nature Park. Between Immendingen and Möhringen and also near Fridingen (Tuttlingen), the water of the Danube sinks into the riverbed in various places. The main sinkhole is next to a field named "Brühl" between Immendingen and Möhringen. The term “sinking” is more accurate than “seeping”, because, instead of just distributing into the soil, the Danube’s water flows through underground caverns to the Aachtopf, where it emerges as the river Radolfzeller Aach. The sinking Danube water disappears into a karst water system of
Henry A. Schade obtain and exploit German science and technologies in areas immediately behind the front lines of fighting in Europe. As allied ground forces gained ground, Schade and his scientists would rush into the void left behind advancing forces to study the equipment and weaponry employed by the Germans. The United States Naval Technical Mission in Europe was particularly interested the capture and study of rocketry and all things naval as German ports and bases were wrested from Hitler's forces. Schade initially headquartered the Mission in Paris, but soon the Mission was constantly on the move as allied forces advanced more and