(Duke University) Research Triangle engineers have developed a simple, energy-efficient way to create three-dimensional acoustic holograms. By printing plastic blocks containing spirals of differing densities and stacking them in a calculated way, sound waves can be slowed by differing amounts and shaped to fit any wave-front wanted. The technique could revolutionize applications ranging from home stereo systems to medical ultrasound devices.
A Purdue University graduate's ideas to utilize sensors and a software platform could lead to greater efficiency at future construction sites.
Instead of an ultrasonic transducer array, you can now make tractor beams with some plastic and a 3D printer
Researchers at the University of Leeds and Durham University have solved a long-standing problem that could revolutionize the way new plastics are developed. The breakthrough will allow experts to create the 'perfect plastic' with s...
3D-printed plastic blocks can now be turned into acoustic holograms that generate 3D shapes made of sound, which could function like sonic "tractor beams," according to a new study.