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Acoustics 亚博棋牌平台
November 13, 2020

Top Headlines
 

Scientists Find Upper Limit for the Speed of Sound

Scientists have discovered the fastest possible speed of ...

Record-Breaking, Floating Laser Resonator

A new optical resonator has unprecedented in resonance enhancement. A resonator is a device that traps waves and enhances or echoes them by reflecting them from wall to wall in a process called ...

Vessel Noise Present Year-Round at Cordell Bank National Marine Sanctuary

The environment in the Cordell Bank National Marine Sanctuary off the coast of San Francisco is not a refuge from the noise generated by ship traffic, the first underwater marine acoustic study of ...

Sounds of Action: Using Ears, Not Just Eyes, Improves Robot Perception

People rarely use just one sense to understand the world, but robots usually only rely on vision and, increasingly, touch. Researchers find that robot perception could improve markedly by adding ...
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Earlier Headlines
 

Decorating Windows for Optimal Sound Transmission

Glass windows typically offer some amount of sound proofing, sometimes unintentionally. In general, ventilation is required to achieve large sound transmission. But some applications -- like gas ...

What Violin Synchronization Can Teach Us About Better Networking in Complex Times

A new study suggests by using a model of violin synchronization in a network of violin players, there are ways to drown out distractions and miscommunications that could be used as a model for human ...

Deep Learning Can Fool Listeners by Imitating Any Guitar Amplifier

A study demonstrates that digital simulations of guitar amplifiers can sound just like the real thing. The implications are that as the software models continue to improve, they can replace ...

Swing Feel in Jazz Music: The Role of Temporal Fluctuations

In 1931, Duke Ellington and Irving Mills even dedicated a song to the phenomenon of swing which they called "It Don't Mean a Thing, If It Ain't Got That Swing". Yet, to this day, ...

Cracking 60-Year-Old Mystery of Sun's Magnetic Waves

Scientists have discovered why the Sun's magnetic waves strengthen and grow as they emerge from its surface, which could help to solve the mystery of how the corona of the Sun maintains its ...

Sounds of Mosquito Mating Rituals Could Lead to Quieter Drones

Mosquitoes flap their wings not just to stay aloft but for two other critical purposes: to generate sound and to point that buzz in the direction of a potential mate, researchers at Johns Hopkins ...

Super Light Dampers for Low Tones

A team of acoustic researchers has built macroscopic crystal structures that use internal rotation to attenuate the propagation of waves. The method makes it possible to build very light and stiff ...

The Nano-Guitar String That Plays Itself

Scientists have created a nano-electronic circuit which vibrates without any external force. Just as a guitar string vibrates when plucked, the wire -- 100,000 times thinner than a guitar string -- ...

Planes and Vehicles Main Culprits Masking Iconic Natural Sounds in Peaceful National Parks

A team of scientists characterized the predominant human noise sources in 66 national parks in the US, in an effort to help parks better manage the noise ...

Using Math to Blend Musical Notes Seamlessly

Researchers have invented an algorithm that produces a real-time portamento effect, gliding a note at one pitch into a note of another pitch, between any two audio signals, such as a piano note ...

Unlock Your Smartphone With Earbuds

A research team is developing EarEcho, a biometric tool that uses modified wireless earbuds to authenticate smartphone users via the unique geometry of their ear canal. A prototype of the system ...

Light and Sound in Silicon Chips: The Slower the Better

Acoustics is a missing dimension in silicon chips because acoustics can complete specific tasks that are difficult to do with electronics and optics alone. For the first time researchers have added ...

New Vibration Sensor Detects Buried Objects from Moving Vehicle

Researchers will report a new laser-based sensor that effectively detects buried objects even while the detector is in motion. This new device offers a significant improvement over existing ...

Scientists Detect the Ringing of a Newborn Black Hole for the First Time

Physicists have 'heard' the ringing of an infant black hole for the first time, and found that the pattern of this ringing does, in fact, predict the black hole's mass and spin -- more ...

Heat Shield Just 10 Atoms Thick to Protect Electronic Devices

Atomically thin materials could create heat-shields for cell phones or laptops that would protect people and temperature-sensitive components and make future electronic gadgets even more ...

Researchers Create First-Ever Personalized Sound Projector With £10 Webcam

A research team has demonstrated the first sound projector that can track a moving individual and deliver an acoustic message as they move, to a high-profile tech and media conference in ...

Barn Owls May Hold Key to Navigation and Location

The way barn owl brains use sound to locate prey may be a template for electronic directional navigation devices, according to engineers who are recreating owl brain circuitry in ...

Physicists Discover New Quantum Trick for Graphene: Magnetism

Physicists were stunned when two twisted sheets of graphene showed signs of superconductivity. Now scientists have shown that the wonder material also generates a type of magnetism once only dreamed ...

A New Path to Understanding Second Sound in Bose-Einstein Condensates

There are two sound velocities in a Bose-Einstein condensate. In addition to the normal sound propagation there is second sound, which is a quantum phenomenon. Scientists have put forth a new theory ...

Mechanical Vibration Generated by Electron Spins

Micro mechanical elements are indispensable components of modern electrical devices but the actuation of them requires electrical current. It becomes harder to wire the element as further downscaling ...

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