U.K. researchers use directed ultrasound waves to approximate tactile sensation.
Women perform vaginal ultrasounds at home, while their doctor views the images from afar.
Proud parents can now own a life-sized figurine of their baby before it's born. Continue reading →
By directing ultrasound to a specific brain area, researchers were able to improve people's ability to discriminate between sensory inputs.
A beam of sound could usher in new kinds of imagers and super-precise clocks. ->