We developed the scenography for „Solid Transitions“ and designed the exhibition spaces dramaturgically and conceptually together with the curators. As a scenographic guiding idea, the infrastructural „landscape“ of the concrete halls is made legible by means of artificial clouds. As contrasting ephemeral elements and transformative objects, they make the thermodynamics in the exhibition spaces visible and reflect the basic structure of the exhibition as well as the fleeting nature of the interventions in the context of the construction site of Stuttgart21.