Scientists have demonstrated for the first time how 'twisted' sound waves from a rotating source can produce negative frequencies—akin to turning back time.
Optics & Photonics
Mar 27, 2018
0
63
In today's "internet of things," devices connect primarily over short ranges at high speeds, an environment in which surface acoustic wave (SAW) devices have shown promise for years, resulting in the shrinking size of your ...
General Physics
Dec 20, 2017
0
81
Levitation techniques are no longer confined to the laboratory thanks to University of Bristol engineers who have developed an easier way for suspending matter in mid-air by developing a 3D-printed acoustic levitator.
General Physics
Aug 15, 2017
0
655
Jinying Zhu's emerging technology is on the ball, off the chain and poised to make bridges safe by sound.
Engineering
Aug 9, 2017
0
19
Some organic crystals jump around when heated up. This happens because of an extremely fast change in their crystal structure. In the journal Angewandte Chemie, scientists have now demonstrated that the crystals send out ...
Condensed Matter
Jun 15, 2017
0
10
Astronomers have constructed the first map of the universe based on the positions of supermassive black holes, which reveals the large-scale structure of the universe.
Astronomy
May 19, 2017
4
587
Last year Asier Marzo, then a doctoral student at the Public University of Navarre, helped develop the first single-sided acoustic tractor beam—that is, the first realization of trapping and pulling an object using sound ...
General Physics
Jan 3, 2017
6
1982
Stradivarius violins are renowned for their supposedly superior sound when compared to other instruments. This has resulted in numerous studies hunting for a scientific reason for why Strads sound so good. A number of these ...
General Physics
Dec 20, 2016
10
151
Materials exposed to a high-radiation environment such as the inside of a nuclear reactor vessel can gradually degrade and weaken. But to determine exactly how much damage these materials suffer generally requires removing ...
Condensed Matter
Dec 13, 2016
0
382
A team of mechanical engineers at the University of California San Diego has successfully used acoustic waves to move fluids through small channels at the nanoscale. The breakthrough is a first step toward the manufacturing ...
General Physics
Nov 14, 2016
0
904
