WomaFreesm • World Organization of Women's Nations on Instagram: "Japan once again proves that innovation starts with simple steps — literally. 🇯🇵 The country has installed piezoelectric tiles that turn people’s footsteps into electricity. When someone walks, their weight creates pressure, and built-in materials convert that pressure into energy. One step generates just a tiny charge, but millions of them — like at Shibuya Station, where about 2.4 million people pass through every day — add up