Fujiko Nakaya starts from radically simple elements like water, pressure, air. Yet, the result is capable of completely disorienting one’s perception of space. With Cloud #07156, the Japanese artist brings her decades-long exploration of fog as a sculptural medium to the Rotunda of the Bourse de Commerce at the Pinault Collection in Paris, as part of the exhibition Clair-obscur.

The installation occupies the circular heart of the museum, beneath the monumental dome, in direct dialogue with the concrete cylinder designed by Tadao Ando — a structure that already transforms, filters, conceals, and reveals the historic space it contains. The fog introduces a third element, shifting and intangible, that overlays the architecture without belonging to it.
The cloud is composed entirely of microscopic water droplets, atomized through high-pressure pumps and specially engineered nozzles to reach a diameter of between twenty and thirty microns, matching that of naturally occurring fog. The sculpture has no fixed form: it thickens and dissolves throughout the day, responding to air currents, ventilation systems, and the movement of visitors. Nakaya has often described these works as conversations with natural forces, acknowledging that wind, humidity, temperature, and human presence are, ultimately, the true authors of each form.
The title Cloud #07156 refers to the code of the meteorological station nearest to the Bourse de Commerce, establishing a link between the artificial cloud inside the building and the real atmospheric conditions unfolding above the city. The work also resonates with the Japanese concept of ma — the relational interval between people and things that fog renders tangible: not a void, but an active field of encounter.
Within Clair-obscur, curated by Emma Lavigne with the contribution of art and media historian Anne-Marie Duguet, Cloud #07156 anchors the exhibition’s fog section, alongside works by Trisha Donnelly, Bruce Conner, Frank Bowling, and Wolfgang Tillmans. The encounter between Nakaya’s ephemeral cloud and Ando’s architecture brings into focus a shared interest in time, nature, and perception: while the concrete cylinder frames and partially conceals the historic rotunda, the fog sculpture adds a constantly shifting climatic layer to the visitor’s experience.

