Claytronics aims to create programmable matter composed of millions of tiny robots called catoms that can rearrange themselves to change the shape and properties of an object. The research team is working to develop the basic catom building block and software to coordinate large ensembles of catoms into dynamic 3D forms. Potential applications include virtual medical exams, miniaturized sports simulations, and shape-shifting household objects and devices. The long-term goal is for these objects to mimic the real world so closely that users cannot distinguish them from physical objects.