Mülheim-Kärlich (dpa) - The approximately 80 meters high rest of the cooling tower of the former nuclear power plant Mülheim-Kärlich has been brought as planned collapse. Previously, two remote-controlled dredgers - one with a chisel and one with pliers - had ripped away several of the 72 pillars at the bottom of the tower. Experts had already deliberately weakened him the days before by cutting slots in the concrete. With the cooling tower, which in former times even towered over the Cologne Cathedral, the most striking structure of the reactor, which was shut down in 1988 after only 13 months of operation, disappears.