Chroma
2024
Inspired by Joseph von Fraunhofer’s pioneering research on prisms and the solar spectrum, the public art installation Chroma channels sunlight into the building, where large-scale prisms split it into its spectral components.
Five prisms made of optical glass—enlarged replicas based on Fraunhofer’s originals—are suspended in the stairwell, transforming the building’s interior into a luminous space infused with the colors of the solar spectrum. A precisely engineered daylight guidance system, extending Chroma to the building’s roof surfaces, redirects sunlight onto the prisms, allowing them to interact dynamically with the ever-changing light.
As a dynamic, ever-changing installation, Chroma creates a sensory connection between the building’s users and the natural phenomena outside, making the interplay of optics and color an integral part of the architectural experience.

Category
public art, installation

Chroma, 2024
Light deflection system, mirrors, prisms, stainless steel, spectral colors of the sun

Public art installation, SPiN building, Fraunhofer-Institut Stuttgart-Vaihingen / Fraunhofer-Gesellschaft München

Photography: Andreas Sporn

Im Fluss2023 The public art project Im Fluss refers to the site and the materials used in the construction of the building.
Heidenheim, with its geographic location at the edge of the Danube valley, plays an important role in the region's gravel and concrete industry. From the foyer to the fourth floor, the exposed concrete surfaces of the building are traversed by an abstract, linear relief.
This relief traces the course of the Brenz River – from its source north of Heidenheim to its confluence with the Danube.
Within the lines of the relief, the cement paste of the exposed concrete was removed in fine layers by sandblasting, revealing what is usually hidden within the material. The various types and colors of gravel – carried by water and originating from diverse geological sources – embedded in the concrete are made visible.
These treated surfaces connect the building's levels and invite visitors to experience them not only visually, but also through touch – to quite literally grasp them as they move through the space.

Category
public art

Im Fluss, 2023
sandblasted concrete
2000 cm x 800 cm

In-situ public art, Duale Hochschule Baden-Württemberg, WCM-Areal Heidenheim, Vermögen und Bau Baden-Württemberg

Frischzelle_28
2022 
The Stuttgart-based artist Hannah Zenger moves with her sculptural works, spatial installations, and conceptual investigations at the intersection of visual art and science.
The starting point for the works presented at Kunstmuseum Stuttgart is a collection of soil and rock samples gathered by the artist from locations around the world. Based on laboratory analysis, she creates artworks that reveal the materiality and diversity of these natural substances. Zenger’s scientifically poetic engagement with the elemental aspects of nature contributes to the broader societal discourse on environmental and nature conservation.
After studying architecture, Hannah Zenger completed her fine arts studies at the State Academy of Fine Arts Stuttgart in 2019. Frischzelle_28 marks her first solo exhibition in a museum context.

Category
exhibition

Frischzelle_28, 2022
Solo-exhibition, curated by Arne Schmidt
Kunstmuseum Stuttgart

2022: Frischzelle_28: Hannah Zenger @Kunstmuseum Stuttgart

exhibition-catalogue online & Walther König bookshop, Stuttgart

Sedimente
2022 
An archive of rocks and soils, collected from various places on earth, resembles a condensation of the diversity of earthly layers and rocks. It forms the basis of the wall installation Sedimente
In a multi-stage process in which fine earth dust is washed over glass panes, images are created that in turn are reminiscent of landscapes. Like visual equivalents of barren topographies, their forms are shaped by the forces of the elements—a translation of natural processes and phenomena that occur on a much larger scale in the environment. 
The composition of the earths, their distinctive colors and textures, each tied to their place of origin, flows across the glass in painterly gestures and interacts with the wall. 

Category
installation, wall

Sedimente, 2022
12-piece wall installation,
soils, glass, steel
each 140 × 100 × 14 cm

2022: Frischzelle_28: Hannah Zenger @Kunstmuseum Stuttgart
2025: Doppelkäseplatte @Kunstmuseum Stuttgart

Collection Kunstmuseum Stuttgart

Pisé
2022 
Layer by layer, moist earth is compacted by hand into massive cylinders using traditional techniques. The method of rammed earth, known in French as pisé, has been used for thousands of years in architecture across different cultures and continents. The visible traces of its formation—through repeated layering and compression—as well as the tangible energy embedded in the manual working process act as a kind of memory. They offer insights into both architectural history and the geological formation of landscapes across the planet.
The five rammed earth objects were handcrafted using traditional processes and naturally occurring, colored earth from Belgium and Germany.

Category
installation, object

Pisé, 2022
5 sculptures
rammed earth, skids
each 85 × 70 × 70 cm

2022: Frischzelle_28: Hannah Zenger @Kunstmuseum Stuttgart

Transformationen I–III
2022 
From across Europe, plant species from endangered habitats were collected, identified, dried, and archived. These botanical samples document the biodiversity of various ecosystems and form the basis of this multi-part installation (Biomassen).
In collaboration with scientific laboratories, the plants undergo a series of transformations: they are incinerated (Aschen), extracted (Extrakte), and subjected to an ash-melting process (Ascheschmelzverhalten). While the procedures follow scientific protocols, the project simultaneously probes the boundary between artistic practice and scientific analysis.
In the laboratory, the dried biomass is burned under controlled conditions. What remains is a modest grey ash. But once all organic matter has been removed, an unexpected range of colors emerges. A subsequent elemental analysis reveals the chemical composition of the plants – and of the landscapes from which they originate.
In a further step, the samples undergo Soxhlet extraction. A special solvent draws out the plants’ volatile substances. The resulting extracts, in liquid form, reveal a delicate spectrum of colors – a sensory and scientific testament to the plant world.

Category
wall, installation

Transformationen: Biomassen
40-piece wall installation

Transformationen: Aschen
37-piece wall installation

Transformationen: Extrakte
33-piece wall installation,
extracted plant-dissolution
Extractions, glass vials
each 14,5 × Ø 3,4 cm

2022: Frischzelle_28: Hannah Zenger @Kunstmuseum Stuttgart

Extraktionen: Soxhlet
2022 
This extraction process is transferred from the laboratory into the exhibition space:
A multi-part laboratory glass installation, a stainless steel table, and a video piece form an experimental arrangement that interweaves aesthetic, material, and epistemological questions. Here too, the boundaries between artistic and scientific approaches to nature are deliberately kept open and continuously explored.
Category
video, installation

Extraktionen: Soxhlet, 2022
Soxhlet-Extraktion im Labor
Video, 30 min.

2022: Frischzelle_28: Hannah Zenger @Kunstmuseum Stuttgart

Ascheschmelzverhalten
2022
Samples of ash derived from biomass are melted in the laboratory on tiny alumina crucibles at extremely high temperatures.
During this renewed heating process, the ash undergoes vitrification – it sinters and becomes glass-like. The ash of the original plant and biomass material is heated beyond its individual melting point, dissolving on the carrier plate into its natural, elemental structure.
At first glance, the microscopically small sample plates from the Ascheschmelzverhalten analysis appear to show nothing more than colored dots. But through macrophotography, a closer look reveals an unexpected depth within the material. Hidden worlds become visible – each one unique in its color and form.
In their diversity, these miniature landscapes reach far beyond their botanical origin, evoking associations, memories, and dreams. They become symbols of condensed time, brought to a temporary halt in the stillness of glass – the final stage of their transformation.

Category
object, wall

Ascheschmelzverhalten, 2023
55 specimen
biomasses, aluminium oxide
each 1,2 x 1 cm

2022: Frischzelle_28: Hannah Zenger @Kunstmuseum Stuttgart

On Earth2022 The exhibition On Earth engages with the seemingly familiar elements of our immediate surroundings, foregrounding materials and surfaces we often overlook. At its center is a three-part cast of the end-grain parquet floor from the heritage-listed former “Steingießerei” — a surface deeply inscribed with traces of labor and use. Recontextualized as a site-specific installation, the piece invites a renewed spatial and historical encounter. Complementing this are vitrines containing collected soil samples, charred branches sourced from wildfire sites on Elba, and earth washed across glass plates, evoking sedimentary layers and abstracted landscapes. Together, these works propose a re-sensitization to matter, gesture, and the geopoetic dimension of place.
Category
exhibition

On Earth, 2022
Solo-exhibition, end of residency
Kulturpark Dettinger

exhibition-catalogue, Landkreis Esslingen

Steingießerei
2022
This work is based on a cast of the nearly fossilized wooden floor of a former workshop, marked by decades of heavy labor, tool traces, and wear. The surface tells a story — usage is inscribed into it. During my studio residency at this site, I created a “skin” of the floor using latex and gauze, peeling it away and hanging the three-part negative vertically in the space.

By suspending these floor impressions at eye level, a surprising shift occurs: the overlooked becomes visible. The golden translucence of the latex lends the work a near-sacral quality, allowing for a present-day encounter with the history embedded in the ground.

"Rooms are shells, they are skins. Peel off one skin after the other, discard it: the repressed, the neglected, the wasted, the lost, the sunken, the flattened, the desolate, the reversed, the diluted, the forgotten, the persecuted, the wounded." Heidi Bucher


Category
installation

Steingießerei, 2022
three-part latex cast of the historic end-grain wood floor of the former stone foundry at Kulturpark Dettinger, Plochingen
Latex, gauze, steel
each 250 x 100 cm

2022: On Earth, Kulturpark Dettinger, Plochingen

© 2025 Hannah Zenger