Deutschland hat das best entwickelte Handelschul system der Welt. Einige Dchulen werden von Kaufmanns Vereinen unterstützt, andere von Städten und einige wenige vom Staat.
Wave energy is one of the most promising renewable energy sources. Thus, research in this field has increased substantially over the last decade. However, significant costs associated with development and maintenance have so far impeded the implementation of commercially viable projects. Furthermore, the hydrodynamic interactions between water and prototypes meant...
