A research group from the Ningbo Institute of Materials Technology and Engineering (NIMTE) of the Chinese Academy of Sciences ...

Sound is a very strange thing. An echo-prone room can be fixed with a single bit of foam in a corner. Noise can be 'cancelled' by playing a reversed sound wave back at your ears. And now a new ...

“We use two ultrasound transducers paired with an acoustic metasurface, which emit self-bending beams that intersect ... “To test the system, we used a simulated head and torso dummy with ...

All the parts are 3D-printed, with two NEMA 17 steppers taking care of both wire feed and moving the bending head. It appears that the head has multiple slots for tools of different shapes.