Purdue University researchers have designed wearable acoustic emission sensors that could be used to monitor the formation of microcracks that can lead to hairline stress fractures in bones. The goal of the device is to alert users when a stress fracture is imminent so that they can stop potentially damaging physical activity. Purdue researchers say they hope the technology can be used to protect race horses, as well as soldiers, athletes and dancers.
Design engineers need to prepare for a future in which their electronic products will use not just one or two, but possibly many user interfaces that involve touch, vision, gestures, and even eye movements.
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