Ultrasound is more than sound. Obstetricians use it to peer inside a woman's uterus and observe a growing baby. Surgeons use powerful beams of ultrasound to destroy cancer cells. Researchers fire ultrasound into materials ...
General Physics
Oct 25, 2016
0
33
The ability to control fine-scale acoustic waves known as phonons could lead to new sensing and surgery technologies, or even materials that are invisible to sonar. This pursuit led researchers at King Abdullah University ...
General Physics
Oct 7, 2016
1
11
Sound can now be structured in three dimensions. Researchers from the Max Planck Institute for Intelligent Systems and the University of Stuttgart have found a way of generating acoustic holograms, which could improve ultrasound ...
General Physics
Sep 22, 2016
0
308
Structural health monitoring systems traditionally use piezoelectric transducers—a device which converts pressure to electric voltage. These transducers normally have excellent reliability except in cases of corrosive environments ...
Optics & Photonics
Sep 16, 2016
0
24
Researchers of Aalto University have made a breakthrough in controlling the motion of multiple objects on a vibrating plate with a single acoustic source. By playing carefully constructed melodies, the scientists can simultaneously ...
General Physics
Sep 9, 2016
1
630
The ubiquity of smartphones and their sophisticated gadgetry make them an ideal tool to steal sensitive data from 3-D printers.
Security
Sep 7, 2016
0
12
(Phys.org)—Spider silk is well-known for its unusual combination of being both lightweight and extremely strong—in some cases, stronger than steel. Due to these properties, researchers have been developing spider-silk-inspired ...
Researchers at the U.S. Naval Research Laboratory (NRL), Optical Sciences Division, in collaboration with the laboratory's Material Science Division, for the first time have demonstrated successful detection of acoustic emission ...
Optics & Photonics
Aug 25, 2016
0
10
For decades, advances in electronics and optics have driven progress in information technology, energy and biomedicine. Now researchers at the University of Arizona are pioneering a new field—phononics, the science of sound—with ...
Optics & Photonics
Aug 17, 2016
0
13
When placed in an acoustic field, small objects experience a net force that can be used to levitate the objects in air. In a new study, researchers have experimentally demonstrated the acoustic levitation of a 50-mm (2-inch) ...
