Papers
	BT Technology Journal Vol. 22, No. 4, October 2004 pp. 287-299 727 kb Bringing clay and sand into digital design - continuous tangible user interfaces Hiroshi Ishii, Carlo Ratti, Ben Piper, Yao Wang, Assaf Biderman, E. Ben-Joseph MIT Media Laboratory ABSTRACT Tangible user interfaces (TUIs) provide physical form to digital information and computation, facilitating the direct manipulation of bits. Our goal in TUI development is to empower collaboration, learning, and decision-making by using digital technology and at the same time taking advantage of human abilities to grasp and manipulate physical objects and materials. This paper presents a new generation of TUIs that enable dynamic sculpting and computational analysis using digitally augmented continuous physical materials. These