Smartphone app can track finger movements
With the advent of smartwatches and smaller touchscreen devices, many people, especially those with limited dexterity, find it difficult to manipulate items on such small screens using just their fingers. In response to this, computer scientists and engineers at the University of Washington (UW) have developed an application, called FingerIO, that allows users to control their devices by tracking the movement of their fingers. Moving your finger on a table or on a piece of paper, or simply moving it in mid-air, would allow you to scroll through menus, press buttons or even reply to a text.