Bemærk: Kan ikke leveres før jul.
However, the idea of using this Archimedean screw also as a hydropower screw to convert hydraulic energy into electrical energy did... Læs mere
Bemærk: Kan ikke leveres før jul.
This book on waterwheels deals with the calculation principles and design rules of overshot and backshot waterwheels. The overshot waterwheel is... Læs mere