In a groundbreaking experiment, scientists in Finland have successfully transmitted electricity through the air without using cables. The achievement combines lasers, ultrasonic sound waves, and radio frequencies, marking a major step toward cable-free power delivery.
The research, led by teams from the University of Helsinki and University of Oulu, demonstrates that electricity can be sent over short distances wirelessly.
“The breakthrough shows that power can move without plugs, wires, or cables,” the scientists said, emphasizing the potential to reshape how homes, factories, and gadgets receive electricity.
According to the team, this innovation could eventually reduce reliance on traditional wiring systems, especially in locations where cables are impractical or unsafe.
Potential applications include implanted medical devices, remote sensors, and smart infrastructure systems. “Researchers created a proof-of-concept that could eventually power devices wirelessly anywhere,” they added.
Moreover, the project integrates physics, engineering, and modern technology, showing that wireless electricity is not a speculative idea but a practical possibility.
Finland is positioning itself as a global pioneer in wireless power research, exploring commercial uses alongside private companies focused on power-by-light and radio-frequency harvesting technologies.
However, the current system is limited in both range and efficiency. Researchers caution that work is ongoing to improve performance while ensuring the technology is safe for real-world deployment. They note that scaling up this technology will require careful attention to energy transmission limits and regulatory approvals.
In addition, the experiment relied on controlled electromagnetic fields to send power, proving that electricity can reach devices without direct cable connections.
Meanwhile, scientists are optimistic that continued research could make wireless electricity a viable alternative to conventional wiring.
