Researchers at Interuniversity Microelectronics Center in Belgium have created the first successful prototypes of their efficient "energy harvester" device.
The new device can be used to power portable devices for a truly infinite time.
Created by Vladimir Leonov and Ruud Vullers, the bulky headband-like device harvests the heat energy constantly emitted by the human power and converts it to electricity which can then be used to power up small devices.
The team also demonstrated an electrocardiogram (ECG) dress shirt which keeps track of your vitals without using batteries; all while cooling you off. They also demonstrated a wireless pulse oximeter, a wristwatch-like device that noninvasively measures oxygen content in arterial blood.
If the team succeeded in making the device more wearable and a little more efficient, the device promises a future where cell phones and mp3 players will never run out of charge.