Signum Monitorium

A buoy with a GPS receiver inside collecting and transmitting data about its position, latitude, longitude and velocity, is floating on the Tiber. It acts like another piece of floating rubbish, as it traces and records its own route on the river. The collected data is shown on the display together with the images of the routes and the microscopically enlarged particles of the water. The buoy becomes the alter ego of the Tiber, its current and one of its inhabitants. We can follow his position, but like a message in a bottle, there is a risk of loss.