REFLEX is a first effort in creating a bottoms up collective in which local behavior has an immediate impact on the system’s behavior. This prototype was developed using a minimal amount of material and is actuated by nine individually controlled muscle wires which allow the tower to bend in response to light intensity values provided by four small variable light resistors. If REFLEX were to exist in a group of hundreds of similar responsive entities, the collective behavior would be governed by the simple rules created for the individual.
Contraction of the Nickel Titanium muscle wire takes place upon heating or the running of current through a lenght of the wire. This contraction allows the wood veneer springs to flex and return to its upright position.
Further development of this concept could allow for the creation of reactive screening elements or continuously adaptive photo-voltaic alignment systems.

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would love to know more about this project. any info links you share?
Stu,
I used http://makingfurnitureinteractive.wordpress.com/2007/10/11/muscle-wire/ for help with the muscle wire.
arduino.cc is the site for help programming
Let me know if you need anything else.
eb