David C. Roy is a kinetic sculptor who creates wooden sculptures that "work". His intuitive understanding of motion and mechanics, combined with artistic influence, has led him to create some of the most amazing sculptures that are all about wood and motion. These sculptures, powered by constant force springs, are to be wound up at a time, and then simply enjoyed!
According to the artist, "I design and build kinetic sculptures because I enjoy the act of creation. Taking an abstract idea and turning it into a physical object that "works" is a thrilling experience. .......... I love watching people's faces as they break into a smile when they "get it."
source: http://www.woodthatworks.com/