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About The Project
“Inochi no Izumi” (Japanese: いのちの湧水, English: Source of Life) is one of the key exhibitions at the Osaka Health Pavilion, “Nest for REBORN,” during Expo 2025 Osaka. The exhibit presents an advanced sustainable food production system that combines hydroponics—growing plants in water—with land-based aquaculture, offering a glimpse into the future of urban food solutions.
The installation is set within a transparent spherical structure symbolizing the Earth. Inside, visitors can witness a closed-loop system where plants and fish coexist symbiotically. Plant roots naturally filter the water, while nutrients from fish waste are repurposed as fertilizer, creating a resource-efficient cycle that significantly reduces food production waste.
“Inochi no Izumi” explores how such integrated systems can support food security in densely populated urban areas where space and resources are limited. It also serves as a powerful statement on the importance of sustainability, reduced carbon emissions, and innovative approaches to agriculture in the face of global challenges.
The exhibition is located in the Osaka Health Pavilion on Yumeshima Island and is also accessible remotely via the official virtual pavilion at 2025osaka-pavilion.jp.
The dome structure reaches a height of 6.4 meters (excluding the platform) and features a total glass surface area of 128 m². The frame is constructed using T-STAR profiles, specifically T50 and T60 types, connected with a total of 76 T-STARS connectors and 10 base connectors. The supporting structure includes 245 struts in total—210 of type T50 and 35 of type T60. The frame is coated in RAL 9010 (pure white), and the total weight of the structural framework amounts to 2,111 kg. For transportation and logistics, the components are distributed across three pallets.
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