Acoustic lens generates tunable 'sound bullets' for ultrasound applications
Independent research group testing D-Wave Two finds no quantum speedup
Solitary acoustic waves observed to propagate at a lipid membrane interface
Best of Last Week – Two mysterious bursts from space, new developments with batteries and fingertip reader for the blind
New test reveals purity of graphene: Terahertz waves used to spot contaminants
Graphene may be tough, but those who handle it had better be tender. The environment surrounding the atom-thick carbon material can influence its electronic performance, according to researchers at Rice and ...
Superconducting secrets solved after 30 years
(Phys.org) —A breakthrough has been made in identifying the origin of superconductivity in high-temperature superconductors, which has puzzled researchers for the past three decades.
Trapped atmospheric waves triggered more weather extremes
Weather extremes in the summer—such as the record heat wave in the United States that hit corn farmers and worsened wildfires in 2012—have reached an exceptional number in the last ten years. Man-made ...
World's first 3-D acoustic cloaking device hides objects from sound
(Phys.org) —Using little more than a few perforated sheets of plastic and a staggering amount of number crunching, Duke engineers have demonstrated the world's first three-dimensional acoustic cloak. The ...
D-Wave chip passes rigorous tests
With cutting-edge technology, sometimes the first step scientists face is just making sure it actually works as intended.
Pair of noted physicists contemplate future of cosmology after detection of primordial gravitational waves
Researchers propose a new way to detect the elusive graviton
(Phys.org) —Among the four fundamental forces of nature, only gravity has not had a basic unit, or quanta, detected. Physicists expect that gravitational force is transmitted by an elementary particle called a graviton, ...
Blogger claims BICEP2 team acknowledging possible error in discovery of evidence of gravitational waves
Engineers build first nonreciprocal acoustic circulator: A one-way sound device
A team of researchers at The University of Texas at Austin's Cockrell School of Engineering has built the first-ever circulator for sound. The team's experiments successfully prove that the fundamental symmetry ...
Nanomotors are controlled, for the first time, inside living cells (w/ video)
For the first time, a team of chemists and engineers at Penn State University have placed tiny synthetic motors inside live human cells, propelled them with ultrasonic waves and steered them magnetically. ...