New potential for touch screens at your fingertips
Our sense of touch is clearly more acute than many realize. A new study demystifies the ?unknown sense? with first-ever measurements of human tactile perception. When a finger is drawn over a surface, vibrations occur in the finger. People feel these vibrations differently on different structures. The friction properties of the surface control how hard we press on the surface as we explore it. A high friction surface requires us to press less to achieve the optimum friction force.
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