The Bema system allows ancient Greek rhetoric and oratory scholar to obtain insights into political assemblies at the Pnyx, which is regarded as the birthplace of democracy. Indeed, the user is placed in the shoes of the orator, or as one of the spectator. Moreover, the multiple architectural evolution of the Pnyx are availlable, letting user engage with the scale change in a more immersive manner.
Interaction are made through a multi-touch table that is placed in the center of the CAVE using the metaphor of a reading desk. To rotate the scenery, 2 fingers touch are used for exemple.