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one day, British inventor Willy Johnson with a shoe factory boss chat, the boss is unsalable to worry about products, hoping to create more selling shoes. that night, Johnson was lying in bed, thinking about how to help the factory owner surprise. Inadvertently, he recalls one childhood: the primary school, in order to calculate the journey home from school, he often walked from home to school, see a number of steps to go, and then measure the distance of one step, you can probably calculate the distance. think of here, Johnson's mind suddenly came up with an idea, if you can invent a measure of distance "step shoes", certainly can sell well. after deliberation, Johnson began to work. He sets a microcomputer in a specially made insole, with a display on the upper. Each step of the wearer's shoes will be displayed on the upper side of the data. later, he made further improvements to "pedometer"; developed a speed measuring shoe that would allow you to calculate time, measure distance, and show the speed of a person's running". "Speed shoes" on the market, by primary and middle school students and athletes alike, known as the "shoe". In the first year of listing in Europe and America, it sold more than 100 thousand pairs. (editor in chief: admin)
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