1 Revised version of a speech held at the celebration of the 25th Anniversary of the Engineering and Process Technology Department of the Technical University Clausthal in Clausfhal-Zeaerfefd. Germany, on October 24. 1991. Or. h. C. Tyll Necker. General manager. Hako-Werke GmbH 8 Co.. Bad Oldesloe. Germany and Vice-president of the Federal Association of German Industry (BDI).