This Smart Sleep-Tracking Pillow is Powered By Your Own Tossing and Turning
At least something can feel refreshed from your poor nights sleep. This tracker is powered by your restlessness. Via Gizmodo:
In a paper recently published in ACS Applied Materials & Interfaces, a team of Chinese researchers detail how they transformed a pillow, the one thing most of us consistently sleep with, into a comfortable(ish) sleep tracking device that doesn’t require a clunky battery or even a tethered power source. The pillow instead relies on a technology called triboelectric nanogenerators (TENGs), which can convert movements and friction into useable energy. The triboelectric approach relies on materials that gain an electrical charge when separated from other materials they were physically touching. Rubbing your feet across a carpeted floor and generating a spark when you touch a door knob? That’s a simplified example of triboelectric charging.
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