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Recycling urine to fertilize the soil

“ Making the most out of urine in agriculture isn't a technological or technical issue, it's a matter of social organization. ”

  • Publish On 12 August 2024
  • Louise Raguet
  • 26 minutes

Since urine is an inexhaustible ecological fertilizer, why not use it instead of chemical fertilizers that are expensive to produce? Designer Louise Raguet suggests bringing back to the fields what has been collected there. Her research with the LEESU laboratory (École des Ponts) has led her to develop a unique project: urine separation in the future Saint-Vincent de Paul district of Paris.

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Podcast

“ En architecture, le sonore demeure une dimension à la fois floue et insaisissable. Il échappe au dessin et au plan, et pourtant, c’est lui qui fait vibrer l’espace, qui le rend habitable et mémorable.  ”

Sound, the Great Forgotten Dimension of Architectural Practice

Carlotta Daro

Podcast

“ En architecture, le sonore demeure une dimension à la fois floue et insaisissable. Il échappe au dessin et au plan, et pourtant, c’est lui qui fait vibrer l’espace, qui le rend habitable et mémorable.  ”

Sound, the Great Forgotten Dimension of Architectural Practice

Carlotta Daro co-led, together with Nicolas Tixier, the Radio Utopia project that animated the French Pavilion at the Venice Biennale in 2023. She is now part of the Gramazio Kohler research group, which focuses on the contribution of digital technologies and new materials to architectural design. There, she leads a research project dedicated to developing virtual reality tools enriched with acoustic simulations, designed to support architects throughout their creative process. This work paves the way for a constructive approach in which sound—too often considered primarily as a nuisance—moves beyond measurement and mitigation to become a perceptual and experiential factor.

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Vidéo

Culture as a weapon

Björn Geldhof

Vidéo

Culture as a weapon

In this exclusive interview, Björn Geldhof, director of the PinchuckArtCentre in Kyiv, looks at the evolution of the centre’s cultural programming since the outbreak of war in Ukraine. From an institutional space whose primary role was to open up the country to the world, the centre has evolved into a platform for committed and activist research, carrying the voice of Ukraine throughout Europe. By using art to document the conflict, the PinchukArtCentre uses a factual approach to raise awareness in the spheres of opinion and decision-making, thus affirming its role as the country’s ‘artistic arm’.  

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Vidéo

"For an open architecture"

Jean-Baptiste de Froment

Vidéo

"For an open architecture"

On the occasion of its integration into the Paris Sciences et Lettres (PSL) university consortium, the École nationale supérieure d’architecture de Paris-Malaquais is publishing a manifesto that asserts its institutional positioning. Far more than a mere text, this manifesto lays the foundations for a committed academic vision, emphasizing the urgent need to train architects engaged in transforming the ways we inhabit the world. Structured around twelve key concepts, it is intended as a compass to guide the school’s pedagogical and strategic choices, in alignment with the 2025–2029 National Strategy for Architecture. In this interview, its director, Jean-Baptiste de Froment, reflects on the values driving this project and on how the school positions itself as a proactive agent of thought and action within the contemporary architectural landscape.

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Article

Educating Citizen Architects: for a meaningful architecture

Andrew Freear

Article

Educating Citizen Architects: for a meaningful architecture

Andrew Freear runs the Rural Studio program at Auburn School of Architecture (USA). He believes that schools of architecture have an ethical responsibility to train citizen architects who are locally committed to concrete projects and experientially connected to contexts and places. To design an inclusive city, the Studio adopts an experimental field approach, combining analysis of the territory’s endemic problems, understanding of residents’ needs and new construction techniques. Read the full interview published in STREAM 05!

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Article

Capturing the Cityscape Through Photography

Émilie d'Orgeix, Corinne Feïss-Jehel, Pierre-Jérôme Jehel

Article

Capturing the Cityscape Through Photography

Over the span of several months, students from GOBELINS Paris scouted La Défense, examining the iconic business district from the fresh perspective of urban metabolism. As part of a documentary workshop led by Pierre-Jérôme Jehel and Laetitia Guillemin (GOBELINS) and designed in partnership with researchers from the City-Metabolism Chair at PSL University, some thirty students explored this territory. They did so by treating it not as a mere backdrop but as a living organism, traversed by flows, tensions, and rhythms, using photography as a tool for revelation. Their projects, located at the crossroads of artistic creation and research, unveil an alternative reading of this mineral space, between invisible flows and underlying tensions. Both sensitive and rigorous, this inquiry is chronicled here by Corinne Feïss Jehel (EPHE-PSL), Pierre-Jérôme Jehel, and Émilie d’Orgeix (EPHE-PSL) as part of a research project conducted by the City-Metabolism Chair (which is financially supported by PCA-STREAM, Artelia, and Groupama Immobilier).

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Article

The potential of the night

PCA-STREAM

Article

The potential of the night

Once a sanctuary for dreams and imagination, nighttime has now been relegated to the mere role of a utilitarian prelude to daytime. Nocturnal realms possess an alchemical power capable of transfiguring our perceptions. However, when viewed through the lens of urban uses, the night also exacerbates inequalities and raises questions about the possibility of achieving an urban night that is accessible to everyone. Exploring the range of possibilities associated with the night reveals it as a space-time where complex interactions are woven that could be revitalized through a chronotopic and inclusive architecture.

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Article

Podcast transcription: Raphaëlle Guidée

Raphaëlle Guidée

Article

Podcast transcription: Raphaëlle Guidée

Raphaëlle Guidée is a specialist in narrative representations of economic, environmental and societal collapse. For over 10 years, she has analyzed the narratives surrounding Detroit’s bankruptcy in order to understand how an apparent ruin of capitalism can inspire discourses of domination or resistance. In La ville d’après : Détroit, une enquête narrative [The Aftermath City: Detroit, a narrative investigation] (Flammarion), rather than focusing on fictions, she seeks out testimonies and concrete stories, believing that modern times don’t need new narratives. We simply need alternative narratives. Read the transcription of her podcast below.

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Article

Using AI to tell history — podcast transcription

Raphaël Doan

Article

Using AI to tell history — podcast transcription

Read our discussion on the subject of generative AI with Raphaël Doan, a specialist in the sciences of Antiquity and author of the uchronia Si Rome n’avait pas chuté (If Rome hadn’t fallen), an essay imagining, with the help of AI, what might have happened if the Industrial Revolution had taken place under the Roman Empire. Through this experiment, fascinating possibilities for historical and archaeological research are outlined, as AI facilitates the processing of archives, the translation of lost languages and the deciphering of burnt texts.

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