Spiral Drawing Sunrise, a device for the site specific recording of sunrises by Esther Polak and Ivar van Bekkum :: September 14-20, 2011; times here :: part of ISEA2011.
Spiral Drawing Sunrise’s main component is a “phototropic car”, a small robotic rover that runs on solar energy, not unlike the carts used by NASA to explore the environments of distant planets. Except that this cart is designed to make observations of a distant body, the sun, in familiar settings, like a public square. It functions as a kind of sun-powered, mobile hour glass: the cart, tight to a pole with a longinsh rope, moves when its panels have collected a given amount of sunlight. And as it continuously deposits sand, the cart leaves behind a patterned spiral trail. Continue reading