Technical utopia (1/2)n° 142, 2025/4 - pages Technical utopia, between political imaginaries and social activism Henri de Graffigny, electroculture and the geneaology of electrical utopias The Circulus in the Twentieth Century: Resurgences and Metamorphoses of the Ideal of Agricultural Recycling of Excreta at the Birth of the Great Acceleration (France, 1930s-1980s) “Peace through sewers”, or the Mediterranean unity as an urban, geopolitical and environmental utopia (1950s1990s) Believing in Breeding: The Transformations of a Nuclear Utopia Martine Bartolomei, Francis Beaucire and Arnaud Passalacqua (eds.), La mer, l’éolienne et le citoyen. Les nouveaux territoires de l’énergie, Paris, Hermann, 2022, 281 p. Emmanuel Foëx (with an essay by Nicola Braghieri), Centrales – Architecture et paysages hydroélectriques de l’arc alpin, Geneva, MétisPresses, 2024, 440 p. Pascal Auzannet, Le casse-tête des mobilités en Île-de-France, Paris, Hermann, 2025, 212 p. Jean-Baptiste Butlen, Pauline Sirot, Mathurin Basile (eds.), Sols vivants. Mieux prendre en compte les sols dans l’aménagement, Marseille, Parenthèses, 2024, 224p.