Mediated Tabletop Interaction in the Biology Lab – Exploring the Design Space of The Rabbit” by Juan David Hincapie-Ramos, Aurélien Tabard and Jakob E. Bardram, 2011. Among others my supervisor built a mediator device, which improves and handles interaction of RFID tagged biology lab test tubes. A small LED grid translates the RFID value of a tag into a Square Code, that is read by the diffuse illumination tabletops (DIT) infrared camera. So at points of interaction, were RFID is still too limited, mediators can possibly fill this gap!?