Sae on Instagram: "Movie: How to Train Your Dragon: The Hidden World (2019) . . . Japan’s footstep-powered energy technology utilizes piezoelectric materials embedded in flooring systems to convert mechanical pressure from footsteps into electrical energy. These materials—often ceramics or polymers—generate an electric charge when compressed. The tiles are strategically installed in high-traffic areas such as train stations, shopping centers, and stadiums. Each step on a piezoelectric tile produ

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