Engineers at MIT have come up with a new approach to medical imaging that is both non-invasive and hands-off the patient. Using lasers, they can peer beneath the surface of the skin without any physical contact required, improving upon the limitations of equipment like ultrasound machines.
Bubbles are delicate little things, which are incredibly sensitive to what goes on around them. And when you hit one with a sound wave, it expands and contacts, creating beautiful patterns in the fluid that surrounds it.
Touch feedback has been advancing rapidly of recent time, and now we’ve gotten to the stage where ultrasound can be used to create entire 3D shapes to touch and feel in thin air.