the auer oranienburg plant provided the uranium sheets and cubes for the "uranmaschine" (uranium machine, i.e., nuclear reactor) experiments conducted at the "kaiser-wilhelm gesellschaft’s" "institut für physik" (kwip, kaiser wilhelm institute of physics) and the "versuchsstelle" (testing station) of the "heereswaffenamt" (army ordnance office) in gottow, under the german nuclear energy project "uranverein". the g-1 experiment performed at the hwa testing station, under the direction of kurt diebner, had lattices of 6,800 uranium oxide cubes (about 25 tons), in the nuclear moderator paraffin.