Intl Digital Video
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Scientists develop ultra-thin battery that could be charged by tears
Daisy Hips
The ultra-thin battery is about 0.2 millimeters thick, making it thin enough to fit inside a 0.5 millimeter contact lens. ...
The ultra-thin battery is about 0.2 millimeters thick, making it thin enough to fit inside a 0.5 millimeter contact lens. ...