It is impossible to see when the "lead" in a pencil cracks within the pencil, but an acoustic sensor can "hear" the change in the way the pencil vibrates. Now, researchers in China have reported in the International Journal ...
Engineering
Jun 8, 2016
0
12
Department of Nuclear Science and Engineering (NSE) doctoral student Cody Dennett cannot measure firsthand the powerful pummeling taken by structural parts in the heart of working nuclear reactors. Instead, he has developed ...
Condensed Matter
Jun 1, 2016
0
7
As seen in other animal species, fish individuals tend to react differently to a new situation. In the case of human harvest, the boldest individuals are more likely to get caught, leaving only the fearful and cautious ones ...
Ecology
May 31, 2016
0
9
Acoustic devices like mufflers and loudspeakers are all around us. In the design of such devices, computer simulations and numerical optimisation algorithms are becoming increasingly useful in order to shorten the product ...
General Physics
May 27, 2016
0
11
If a volcano explodes in the remote reaches of Alaska, will anyone hear it? Seismologists working in the state say yes—after using a refined set of methods that allows them to detect and locate the airwaves generated by ...
Earth Sciences
Apr 4, 2016
0
26
University of Melbourne scientists have shone a new light into the complexities of ant communication, with the discovery that ants not only pick up information through their antennae, but also use them to convey social signals.
Plants & Animals
Mar 30, 2016
0
157
Researchers working at the National Institute of Standards and Technology (NIST) have developed a "piezo-optomechanical circuit" that converts signals among optical, acoustic and radio waves. A system based on this design ...
Optics & Photonics
Mar 28, 2016
0
1874
A method to rotate single particles, cells or organisms using acoustic waves in a microfluidic device will allow researchers to take three dimensional images with only a cell phone. Acoustic waves can move and position biological ...
General Physics
Mar 23, 2016
0
461
For a few weeks in early fall, Georges Bank—a vast North Atlantic fishery off the coast of Cape Cod—teems with billions of herring that take over the region to spawn. The seasonal arrival of the herring also attracts ...
Plants & Animals
Mar 2, 2016
0
18
Acoustic-gravity waves are very long sound waves that cut through the deep ocean at the speed of sound. These lightning-quick currents can sweep up water, nutrients, salts, and any other particles in their wake, at any water ...
General Physics
Feb 29, 2016
0
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