Researchers at the University of Wisconsin-Madison recently developed a shoe that can use walking to generate energy. Researchers use the inverse effect principle of the "electrowetting effect" (a physical and chemical phenomenon that changes the wettability of a conductive liquid by applying electricity to it, thereby changing the shape of the liquid) to generate electricity by changing the shape of the conductive liquid. . The amount of electrical energy generated depends on the amount of liquid used. If 1,000 drops of conductive liquid are placed in an area of ??40 square centimeters, the power generated will be approximately 10 watts. This energy can be used to charge various electronic devices. Because the source of this energy is very convenient, when the technology further matures, its prospects cannot be ignored.
