Keep in mind that they are using wave interference patterns generated by the addition of many reflected waves to generate the movement. This is a very complicated wave function to work with and likely requires an excellent understanding of the entire system structure contributing to the experiment to achieve the desired results.
I suspect that is would be possible to excite the system with various signals in order to build up a model that you then can control. Hopefully, the tank does not require tightly regulated resonances in order to function in a controllable fashion. Dave -----Original Message----- From: David Jonsson <[email protected]> To: vortex-l <[email protected]> Sent: Mon, Aug 18, 2014 12:07 pm Subject: [Vo]:Water tractor beams and Bjerknes Hi Here is a special recent example where oscillations can create horizontal movement of a floating object: http://news.anu.edu.au/2014/08/11/physicists-create-water-tractor-beam/ Is it an example of any effect described by Vilhelm Bjerknes in his book Fields of force from 1906? https://archive.org/details/fieldsofforce00bjeruoft David
