Abstract
``Sound Wave Sculpture'' is sculpture that is formed by music composed with sinusoidal sound waves which create the movement of particles in a cylindrical container. In the basic experiment, we put spherical styrene foam (2 mm diameter) into a cylinder. The purpose of the experiment present here is to change the contents and investigate the difference in the dynamics seen. In addition to visual data, the difference of behavior is measured as a function of output voltage of the power amplifier. As the result, interesting movements are shown as a form of artistic expression. The results show various behaviors. For spherical styrene foam 2 mm and 5 mm diameters the bigger spheres arranged themselves vertically while the smaller ones dispersed in a random pattern with the sinusoidal waves. Whilst spherical brass balls (2 mm diameters) go straight ahead from center of the speaker in a direction parallel to the cylinder, and move across the cylinder at a right angle to it with an interesting layer formed by the sinusoidal waves. Brass balls show a beautiful bouncing motion. Feathers show bigger movement due to the air resistance. Silver beads showed beautiful reflective lights from blinking LEDs. A final observation is that, in micro-gravity environment, the visualisation of sound wave's is possible even by weak sinusoidal waves, and the weak sinusoidal waves look much more beautiful than strong sinusoidal waves when we use spherical styrene foam.
