"REFRACT is designed to embrace and deploy the phenomena of light.
Triangulated planar surfaces of acrylic modules are the receivers of
reflection and refraction from precise folds, which respond to light in
an entirely different, more concentrated manner. The transparent acrylic
has the capability of existing as both seen and unseen, dependent upon
the presence of light." Adam Anderson, via notcot.org http://www.adameanderson.com/refract/