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Acoustics

Acoustics is the branch of physics concerned with the study of sound (mechanical waves in gases, liquids, and solids).

Note: The above text is excerpted from the Wikipedia article "Acoustics", which has been released under the GNU Free Documentation License.

For more information, see the following related content on ScienceDaily:

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Acoustic Solutions Made from Natural Fibers Can Reduce Buildings' Carbon Footprints

June 2, 2021 — Good acoustics in the workspace improve work efficiency and productivity, which is one of the reasons why acoustic materials matter. The acoustic insulation market is already expected to hit 15 ...

Novel Materials: Sound Waves Traveling Backwards

June 10, 2021 — Acoustic waves in gases, liquids, and solids usually travel at an almost constant speed of sound. Rotons are an exception: their speed of sound changes significantly with the wavelength, it is also ...

The Rule of Two Helps Make Spaces Sound Better

Mar. 30, 2022 — Researchers developed a new acoustic measurement technique in a room with more acoustic combinations than there are ants on ...

Balancing Sustainability, Safety and Comfort in Engineered Floor Slabs

Feb. 2, 2022 — Using less material in floors is a viable strategy for improving sustainability in buildings, as it can reduce the structure's environmental footprint. Prioritizing only this goal, however, can ...

Neural Networks Predict Forces in Jammed Granular Solids

Sep. 1, 2022 — Granular matter is all around us. Examples include sand, rice, nuts, coffee and even snow. These materials are made of solid particles that are large enough not to experience thermal fluctuations. ...

Creating Order by Mechanical Deformation in Dense Active Matter

Sep. 27, 2021 — Living or biological systems cannot be easily understood using the standard laws of physics, such as thermodynamics, as scientists would for gases, liquids or solids. Living systems are active, ...

Cells Dancing Harmonic Duets Could Enable Personalized Cancer Therapies

Mar. 24, 2022 — Mechanical engineers are using two electronic 'voices' singing a harmonic duet to control suspended particles and cells in new and valuable ways. Their prototype device can form and rotate ...

Researchers Derive New Theory on Behavior of New Class of Materials

June 21, 2022 — Researchers have derived the governing equations that describe and explain the macroscopic mechanical behavior of elastomers filled with liquid inclusions directly in terms of their microscopic ...

Intense Lasers Shine New Light on the Electron Dynamics of Liquids

Sep. 29, 2023 — The behavior of electrons in liquids is crucial to understanding many chemical processes that occur in our world. Using advanced lasers that operate at the attosecond, a team of international ...

Technology Uses 'Single' Approach to Develop Electronics, Acoustics

Mar. 25, 2021 — An innovator developed a new approach to creating popular thin films for devices across a broad range of fields, including optics, acoustics and electronics. Epitaxial lithium niobate (LNO) thin ...

Matter & Energy News

November 29, 2023

Printed Robots With Bones, Ligaments, and Tendons

Nov. 15, 2023 — For the first time, researchers have succeeded in printing a robotic hand with bones, ligaments and tendons made of different polymers using a new laser scanning technique. The new technology makes it possible to 3D print special plastics with ...

'Cooling Glass' Blasts Building Heat Into Space

Nov. 13, 2023 — Researchers aiming to combat rising global temperatures have developed a new 'cooling glass' that can turn down the heat indoors without electricity by drawing on the cold depths of space. The new technology, a microporous glass coating, can lower ...

Photonics Team Develops High-Performance Ultrafast Lasers That Fit on a Fingertip

Nov. 9, 2023 — Scientists demonstrate a novel approach for creating high-performance ultrafast lasers on nanophotonic chips. The new advance will enable pocket-sized devices that can perform detailed GPS-free ...

450-Million-Year-Old Organism Finds New Life in Softbotics

Nov. 6, 2023 — Researchers have used fossil evidence to engineer a soft robotic replica of pleurocystitids, a marine organism that existed nearly 450 million years ago and is believed to be one of the first echinoderms capable of movement using a muscular ...

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Greener Solution Powers New Method for Lithium-Ion Battery Recycling

Nov. 29, 2023 — Used lithium-ion batteries from cell phones, laptops and a growing number of electric vehicles are piling up, but options for recycling them remain limited mostly to burning or chemically dissolving ...

A Single Bitcoin Transaction Could Cost as Much Water as a Backyard Swimming Pool

Nov. 29, 2023 — Cryptocurrency mining uses a significant amount of water amid the global water crisis, and its water demand may grow further. Researchers provides ...

Eye-Safe Laser Technology to Diagnose Traumatic Brain Injury

Nov. 29, 2023 — Researchers have designed and developed a novel diagnostic device to detect traumatic brain injury (TBI) by shining a safe laser into the ...

Slippery Toilet Bowl Treatment Causes Bacteria to Slide Right Off

Nov. 29, 2023 — When entering public restrooms, it's hard not to dwell on what germs previous users have left behind in the toilet bowl. Imagine, instead, a self-cleaning system that doesn't require a brightly ...

Blasts to Clear World War II Munitions Could Contaminate the Ocean

Nov. 29, 2023 — World War II concluded decades ago, but live mines lurking on the ocean floor still pose threats, potentially spewing unexpected geysers or releasing contaminants into the water. Experts conduct ...

Swapping Blood for Spit -- For Convenient at-Home Health Monitoring

Nov. 29, 2023 — Blood tests are a common, yet often painful, step in health care. But what if we could skip the needles altogether? Saliva and blood contain many of the same biomarkers, and collecting spit is as ...

Nearly 400,000 New Compounds Added to Open-Access Materials Database

Nov. 29, 2023 — New technology often calls for new materials -- and with supercomputers and simulations, researchers don't have to wade through inefficient guesswork to invent them from ...

Network of Robots Can Successfully Monitor Pipes Using Acoustic Wave Sensors

Nov. 29, 2023 — An inspection design method and procedure by which mobile robots can inspect large pipe structures has been demonstrated with the successful ...

How Do You Make a Robot Smarter? Program It to Know What It Doesn't Know

Nov. 28, 2023 — Engineers have come up with a new way to teach robots to know when they don't know. The technique involves quantifying the fuzziness of human language and using that measurement to tell robots when ...

Compact Accelerator Technology Achieves Major Energy Milestone

Nov. 27, 2023 — Researchers have demonstrated a compact particle accelerator less than 20 meters long that produces an electron beam with an energy of 10 billion electron volts (10 GeV). There are only two other ...