Technical utopia (1/2) n° 142, 2025/4 - pagesCoordination : Fanny Lopez, Anael Marrec et Olivier Coutard.Pages 1 to 16Technical utopia, between political imaginaries and social activismBy Anaël Marrec, Fanny LopezPages 17 to 32Henri de Graffigny, electroculture and the geneaology of electrical utopiasBy François JarrigePages 33 to 52The 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)By Étienne DufourPages 53 to 70“Peace through sewers”, or the Mediterranean unity as an urban, geopolitical and environmental utopia (1950s1990s)By Samuel RipollPages 71 to 89Believing in Breeding: The Transformations of a Nuclear UtopiaBy Martin Denoun, Claire Le Renard, Ange PottinPages 91 to 93Martine 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.By Didier KahnPages 95 to 97Emmanuel Foëx (with an essay by Nicola Braghieri), Centrales – Architecture et paysages hydroélectriques de l’arc alpin, Geneva, MétisPresses, 2024, 440 p.By Elke MittmannPages 99 to 101Pascal Auzannet, Le casse-tête des mobilités en Île-de-France, Paris, Hermann, 2025, 212 p.By Félicien BoironPages 103 to 105Jean-Baptiste Butlen, Pauline Sirot, Mathurin Basile (eds.), Sols vivants. Mieux prendre en compte les sols dans l’aménagement, Marseille, Parenthèses, 2024, 224p.By Arturo Romero Carnicero