Petra Stelzmüller sees herself as an everyday architect. She takes items of everyday use and breathes life into them. In doing so, she would like to make art accessible to everyone. Her project for the Rado Star Prize, ‘Zero Gravity’, is more abstract and deals with the topic of space and time. “Measuring time means breaking it down into units,” she says. “The smallest unit is the moment in which time stands still. If the course of time is stopped, we get a snapshot in which both time and space become unnecessary. Timelessness and weightlessness prevail.” Petra Stelzmüller’s installation consists of numerous components: a “floating” ball as the main part of the installation, two mirrors, and numerous LEDs arranged in a row. At the centre of the installation, the ball floats on an extremely thin, virtually invisible nylon thread. An LED light strip in the background simulates the movement of the water droplet. A radially broken mirror is fitted to the floor of the display case, while a further, intact mirror is mounted on the ceiling. For the viewer, the space thus appears fragmented.  What’s more, the broken mirror imitates the ripples on the surface of the water that has been broken by the droplet that fell before.