Wilhelm Bauer was the German inventor and engineer, who built 1850 first German’s submarine “Incendiary ship” ("Der Brandtaucher"). The ship achieved submersion by filling tanks with sea water. Modern submarins are built on the same principle. 1855, in Russia, Wilhelm Bauer built his second submarine “The Sea devil” (Seeteufel), and it made 133 successful diving. The film was made with 3D animation. Author Zoran Simic. 57 min.