Research team develops acoustic topological insulator idea to allow for hiding from sonar
Landmark study proves that magnets can control heat and sound
Researchers at The Ohio State University have discovered how to control heat with a magnetic field.
Flight and nuclear safety boosted by sound research
A system for using sound waves to spot potentially dangerous cracks in pipes, aircraft engines and nuclear power plants has been developed by a University of Strathclyde academic.
'Nano-earthquakes' hold key to smarter electronics
The performance of mobile phone cameras and solar cells could be boosted by "nano-earthquakes", researchers have found.
Electron spins controlled using sound waves
The ability to control the intrinsic angular momentum of individual electrons – their "spins" – could lead to a world of new technologies that involve storing and processing information.
A new way to control information by mixing light and sound
For once, slower is better in a new piece of technology.
Study examines role of acoustic-gravity waves as ocean transport, early warning of tsunamis
Acoustic-gravity waves—a special type of sound wave that can cut through the deep ocean at the speed of sound—can be generated by underwater earthquakes, explosions, and landslides, as well as by surface ...
Weighing gas with sound and microwaves
NIST scientists have developed a novel method to rapidly and accurately calibrate gas flow meters, such as those used to measure natural gas flowing in pipelines, by applying a fundamental physical principle: ...
Drones must learn to navigate populated areas
For drones to make it to the big time, they will need to learn to get around in towns and cities—without falling on car hoods or crashing into pedestrians.
Acoustic levitation made simple
A team of researchers at the University of São Paulo in Brazil has developed a new levitation device that can hover a tiny object with more control than any instrument that has come before.
New seismic survey technique could save dolphins' hearing
Conventional seismic imaging transmits sound energy into the ground and builds a picture of the underlying geology by analysing how the energy waves are reflected back to the receiver.
How birds get by without external ears
Unlike mammals, birds have no external ears. The outer ears of mammals play an important function in that they help the animal identify sounds coming from different elevations. But birds are also able to ...
The walls can talk: New optical technique extracts audio from video
Those formerly silent walls can "talk" now: Researchers have demonstrated a simple optical technique by which audio information can be extracted from high-speed video recordings. The method uses an image-matching process ...
When noise gets electrons moving
Studying the motion of electrons in a disordered environment is no simple task. Often, understanding such effects requires a quantum simulator designed to expose them in a different physical setup.