Theoretical Shoe Inserts Could Power Your Gadgets


    In his first accepted submission, Anon8—) writes “As published on, a process called electrowetting, 'in which a conductive liquid droplet, placed on an electrode, is physically deformed by an applied electric charge,' could be used to provide 10 watts of juice to smartphones and other gadgets as you walk. 'The technique depends on the use of a dielectric material — which is usually an insulator but that can be polarized in an electric field — to coat the electrode. When the dielectric is charged the droplet can wet the surface more easily, and deforms. In his system, Krupenkin runs this process backwards, using the changing physical form of liquid drops between dielectric-coated plates to generate charge and therefore electrical power.' So far, Krupenkin and Ashley Taylor have been able to produce a few milliwatts of power along tiny channels a few millimeters wide. They have patented the idea and are now concentrating on scaling up the device and designing a shoe to contain it.”

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    Theoretical Shoe Inserts Could Power Your Gadgets


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