Scientists in Finland have recently demonstrated a major advance in wireless electricity transmission, successfully sending electrical power through the air without using traditional physical wires, plugs, or cables. Researchers from institutions including the University of Helsinki and the University of Oulu used techniques such as ultrasonic sound waves, laser beams, and radio-frequency systems to create controlled pathways for electricity to travel through the air, in a concept sometimes described as an “acoustic wire.” While this work is still experimental and currently limited to specific demonstrations, it represents a significant step toward future technologies that could power devices without wired connections and reshape how electricity is delivered. #Finland #Electricity #Power #Invention #Money