Assignment 1: Pendulum

Abstract:
Three speakers are suspended from a ceiling on long wires and initiated into a pendulum motion. Each speaker emits a tone, whose frequency changes with the direction and tilt of the speaker. Electromagnets are placed around the perimeter of speaker's trajectory. They are triggered on by a presence of a person nearby (measuered by proximity sensors). This pulls the speaker closer to the activated magnet and changes its trajectory. The period of the sound it produces will be off sync with the other speakers. In this way a record of each visitor is encoded into the overall sound of the piece.
I'm interested in the idea that the sound in the space would represent a sum total of all the interactions that took place with the system. The speed and vector of movement of any object in space is an effect of all the forces that ever acted on it. I wanted to create a parallel to that in a gallery.

What I hope to achieve:
I would like to create an experience in which the complexity of sound and motion in space would be an emergent property based on the history of the interactions of the system with the visitors. I would like the visitor to be able to perceive the uniqueness of the moment in time and the behavior of the system as cumulative state of all the forces that ever acted upon it.


 

 

Procedure:
- Build hardware: find speakers, build a suspension and initiation system
- use arduino and a 3 axis accellerometer to detect the tilt and direction of the speakers
- write software that produces sound based on the direction and tilt of the speakers
- build electro-magnetic switches triggered by proximity sensors
- make a initiation switch (triggered also in case a pendulum would come to a stop)
- build-in a method to make perceivable the process by which the current state of the system came to be


pendulum
A simple gravity pendulum is a weight on the end of a rigid rod (or a string), which, when given an initial push, will swing back and forth under the influence of gravity over its central (lowest) point. It is a resonant system with a single resonant frequency. the amlitude of the sine relationship is proportional to gravity and inversly proportional to length of the pendulum. the terrestrial effect on the pendulums makes them useful instruments for the demonstration of the rotation of the Earth (Fucault Pendulum) and for measuring g (pendulum's frequency will be different on different places on Earth).

site specific
the state of the installation is a record of all the presences in the space. It will be different for each site, due both to the slight change in frequency that the local gravity will produce and due to different history of each site.state of the system as record of its history
accumulation of changes creates complexity. local organization is developed. Our traditional outside perspective has provided a view of events as being controlled by outside conditions. One looks for the formation and decay of intertwined sets of relationships, creating inside and outside relationships with other things, as if separate universes of causation. One particular reason is that natural systems and structures generally have many things being used by many things, simultaneously acting cross linked nodes, and we can only look at one thing at a time.   The preferred starting point for studying them (curriculum) is in-depth study of some single natural (accumulative) process of change from several scales of description, combined with maintaining careful distinction between what's real and what we build and record in our images.evidence of the process
I would like the viewer to be able to recognize the idea behind my piece from the evidence at the site. The sound is a record of history in its accummulation of the changes over time. in that it's similar to the genetic selection mechanism, in which the phenotype is an external expression of the genetic changes accumulated over time. the evidence of the beginning of this process is not easily detectable in the complex form that it takes at the moment. Since this process is not a closed system, there is no perceivable end to the process. In this installation I will have a light suspended with the speaker, pointing down. the gallery floor will be covered with a soil seeded with small-bladed grass. the light will expose only the grass under the tragectory of the pendulum and the pattern in which the grass will grow will be a phenotype of my system.