The so called "sogwendel" by viktor schauberger reconstruced by felix hedinger is a vortex like construction in the shape of a shell that is able to pump and energize water
Channelling God From Within: February 2011
Channelling God From Within: Viktor Schauberger- Nature Was My Teacher
viktor schauberger bio-plough
New Energy Technology: Clean energy developments: Advances with Viktor Schauberger's implosion system
Viktor Schauberger naturalist, philosopher, inventor and Biomimicry experimenter.
Sacred Living Geometry part 1 - Theories of Viktor Schauberger
About the repulsine of viktor schauberger - worked out by felix hedinger