fish

The Healing Water Institute is an international education and research group with charitable trusts in New Zealand, the United Kingdom and currently being formed in the United States.

Our whole aim is to help water support life better. Water is under great attack from agricultural and industrial pollution and urban mis-use , greatly reducing its ability to support life.

To achieve this we provide education events, we research water and also design technology that helps improve water's condition.

The Beginnings of Genius : Viktor Schauberger (by Callum Coats)

http://news.com.com/Turning+natures+design+into+scientific+breakthrough/2100-1008_3-6044461.html

When Jay Harman was a skinny 10-year-old swimming off the coral reefs of Australia's western coast, he had an insight that 37 years later would lead him to invent an industrial design that could change personal computing, aeronautics and how drinking water is purified.

As a nature-loving boy, the young Australian just wanted to swim faster, so he watched how fish moved through water and how seaweed undulated against the reef when a wave crashed.

The shape he noticed that day was a simple curve that fluidly formed into a spiral. From then on, Harman would see spirals as a common design in nature--in pinecones, whirlpools, a puff of smoke.

Jay Harman

Now he believes spirals are a key to making a wide array of machines more energy-efficient. Through his 9-year-old company, Pax Scientific, he's trying to bring that natural form into the technological world. So far, he's invented industrial designs for fans, pumps and propellors that mimic the geometries of spiraling whirlpools. Experts believe these designs can reduce friction, wasted energy, noise and unwanted heat.

By Viktor Schauberger

This article is taken from IMPLOSION nr 7.

translated by QRT (Curt Hallberg)
http://home.swipnet.se/jens_katrin/EnSchauberger/introduction.html

The family coat of arms for the von der Schauenburg family was a broken trunk with a savage hedge rose wreathing around. The family motto was: "Findus in silvis sientibus" (Faithful to the silent forests).

Their castle once stood on Schauenberg. The last descendants of one of the last robber barons was caught in an ambush by the archbishop of Passau. The elder one was decapitated but the youngest was reprieved and exiled. Being the last of his family he went into the vaste primeval forests around Dreisselberg and settled down on the shore of Plöckensteinsee. Here he lived a life as a forester. From him the family Schauberger emerges, who during nearly one millennium have been foresters, fishermen and woodsmen.

Prof. A.H. Techet
Department of Ocean Engineering
Massachusetts Institute of Technology
Cambridge, MA 02139

To better understand the fluid forcing produced by fish when they are swimming it is necessary to first discuss the basic concept of a vortex and vorticity. A vortex arises when flow encircles a central point. Examples of where vortices occur in nature include: whirlpools, tornados, ocean eddies, blood flow through heart valves, and flow swirling behind rocks in a river current. Vortices appear in engineering fluid applications as well: flow around offshore platforms, tip-vortices from aircraft wings, helical vortices in propeller wakes and helicopter rotors. In general, vortices can form when flow passes any object with a non-streamlined shape or a sharp corner, and separates from the body.

 James C. Liao,  David N. Beal,  George V. Lauder,  Michael S. Triantafyllou

Fishes moving through turbulent flows or in formation are regularly exposed to vortices. Although animals living in fluid environments commonly capture energy from vortices, experimental data on the hydrodynamics and neural control of interactions between fish and vortices are lacking. We used quantitative flow visualization and electromyography to show that trout will adopt a novel mode of locomotion to slalom in between experimentally generated vortices by activating only their anterior axial muscles. Reduced muscle activity during vortex exploitation compared with the activity of fishes engaged in undulatory swimming suggests a decrease in the cost of locomotion and provides a mechanism to understand the patterns of fish distributions in schools and riverine environments.....