Viralhoodz on Instagram: "In Japan, researchers are developing *smart sidewalks* that transform everyday movement into clean energy. These walkways are embedded with special piezoelectric materials that capture kinetic energy from footsteps. As people walk, run, or jump, the surface slightly compresses, generating mechanical pressure — which the crystals then convert into electricity🔋. The harvested energy can power streetlights, public screens, and even pedestrian flow sensors. This innovation

2分钟搞懂VR（虚拟现实技术）[高清版]