What this means is that an array of ultrasound generators creates a variety of shapes -- such as cubes and spheres -- which the user can feel when they place their hand above the array. By itself ...

Posted in Arduino Hacks, Tech Hacks Tagged 3d scanner, ultrasonic, ultrasonic array ← 3D Printing Espresso Parts Robotic Bartender Built With Industrial-Grade Hardware → ...

A for Acoustic: a new 'straightforward' acoustic-hologram technique could have applications in medical ultrasound. (Courtesy: Scientific Reports 6 35437) Researchers in the US have created a printed ...