Stochastic resonance

Falls are the leading cause of death by injury amongst seniors. Now, however, a new study indicates that subtly-buzzing insoles may help seniors regain some of the lost sensation in their feet, and thus be less likely to fall down.

Scientists have created a device that improves peoples' sense of touch, by vibrating their fingertip.

Princeton engineers have developed a system where a nonlinear crystal steals energy from image noise to reveal hidden or obscured objects