As previous posts indicate, currently I am experimenting with Alvin Lucier's Queen Of The South work for responsive surfaces and strewn materials. The work was influenced by the Swiss physicist Hans Jenny who coined the term cymatics, and composed an impressive catalogue of images using all manner of surfaces and materials. Cymatics is the study of wave phenomena, Jenny's compositions used sound vibrations from sine tones to create an array of patterns using substances such as gas, water, powder and liquid pastes.
These are extraordainary compositions! Though my flour and cous cous patterns were nice this is something else. It may be time to venture down the rabbit hole a little deeper.
1,2. Wikipedia. 2006. http://en.wikipedia.org/wiki/Hans_Jenny_(1904-1972), last viewed 17/7/06.