24/7 Space News
How sound can be transmitted through vacuum
Sound waves tunneling across a vacuum gap.
How sound can be transmitted through vacuum
by Robert Schreiber
Berlin, Germany (SPX) Aug 11, 2023

Contrary to the popular adage from cinema that in space, "no one can hear you scream," recent findings from the University of Jyvaskyla suggest otherwise. Physicists Zhuoran Geng and Ilari Maasilta from the institution's Nanoscience Center have brought to light a remarkable phenomenon, showing that in certain conditions, sound can indeed traverse a vacuum.

At the heart of their research is the concept of sound waves "tunneling" through a vacuum gap, provided the solids on either side are piezoelectric. For those less familiar with the term, piezoelectric materials have the unique ability to generate an electric charge in response to mechanical stress, such as sound waves. The resulting electric field produced by these vibrations can permeate a vacuum, effectively allowing sound waves to cross.

However, this isn't a carte blanche for any sound wave to travel through space. The tunneling is dependent on the vacuum gap being smaller than the sound wave's wavelength. The researchers found that this tunneling phenomenon isn't limited just to the audio frequency range (Hz-kHz). It's also observable in ultrasound (MHz) and hypersound (GHz) frequencies, contingent on the vacuum gap size being reduced in correlation with increasing frequencies.

"In most cases, the effect is small, but we also found situations where the full energy of the wave jumps across the vacuum with 100% efficiency, without any reflections," commented Professor Ilari Maasilta, elucidating the significance of the findings. This revelation isn't just an academic curiosity. Its practical applications have the potential to influence sectors dependent on microelectromechanical systems (or MEMS, commonly found in smartphone technology). Moreover, it could also play a pivotal role in controlling heat in various technologies.

The groundbreaking research undertaken by the team at the Nanoscience Center was generously supported by the Academy of Finland and the European Union's Horizon 2020 program. For those seeking a deeper dive into the details of this discovery, the full study was published in the journal Communications Physics on 15th July 2023.

Research Report:Complete tunneling of acoustic waves between piezoelectric crystals, Communications

Related Links
The University of Jyvaskyla
Understanding Time and Space

Subscribe Free To Our Daily Newsletters

The following news reports may link to other Space Media Network websites.
Calculations reveal high-resolution view of quarks inside protons
Upton NY (SPX) Aug 04, 2023
A collaboration of nuclear theorists at the U.S. Department of Energy's (DOE) Brookhaven National Laboratory, Argonne National Laboratory, Temple University, Adam Mickiewicz University of Poland, and the University of Bonn, Germany, has used supercomputers to predict the spatial distributions of charges, momentum, and other properties of "up" and "down" quarks within protons. The results, just published in Physical Review D, revealed key differences in the characteristics of the up and down quarks. ... read more

Russian cosmonauts perform spacewalk to attach debris shields to space station

Advanced Space selected for two NASA SBIR Phase I Awards

NASA and Axiom Space join forces for fourth private mission in 2024

NASA announces crew for 2024 ISS rotation mission

Impulse Space secures $45M in Series A Funding Round

Rocket Lab inks new deal to launch HASTE mission from Virginia

Boeing says troubled Starliner will be ready to fly crew by March

Hypersonics Capability Center: Northrop Grumman's next step beyond Mach 5

Organic molecules in Martian crater help to reconstruct planet's history

Mars once had wet-dry climate conducive to supporting life: study

InSight study finds Mars is spinning faster

Ingenuity flies again after unscheduled landing

China to launch "Innovation X Scientific Flight" program, applications open worldwide

Scientists reveal blueprint of China's lunar water-ice probe mission

Shenzhou 15 crew share memorable moments from Tiangong Station mission

China's Space Station Opens Doors to Global Scientific Community

ESA's Space Environment Report 2023

US storms, natural disasters push up insurance costs: Swiss Re

Eutelsat and Thaicom to partner for new software-defined satellite over Asia

Astra Space optimizes workforce to support sustainable long-term business plan

New method simplifies the construction process for complex materials

Sensing and controlling microscopic spin density in materials

Umbra achieves Commercial SAR milestone with 16-cm resolution

DLR harnesses 3D Printing for efficient production of spaceflight components

Chemical contamination on International Space Station is out of this world

New exoplanet discovery builds better understanding of planet formation

Violent Atmosphere Gives Rare Look at Early Planetary Life

Using cosmic weather to study which worlds could support life

Looking for Light with New Horizons

James Webb Space Telescope sees Jupiter moons in a new light

NASA's Juno Is Getting Ever Closer to Jupiter's Moon Io

SwRI team identifies giant swirling waves at the edge of Jupiter's magnetosphere

Subscribe Free To Our Daily Newsletters


The content herein, unless otherwise known to be public domain, are Copyright 1995-2023 - Space Media Network. All websites are published in Australia and are solely subject to Australian law and governed by Fair Use principals for news reporting and research purposes. AFP, UPI and IANS news wire stories are copyright Agence France-Presse, United Press International and Indo-Asia News Service. ESA news reports are copyright European Space Agency. All NASA sourced material is public domain. Additional copyrights may apply in whole or part to other bona fide parties. All articles labeled "by Staff Writers" include reports supplied to Space Media Network by industry news wires, PR agencies, corporate press officers and the like. Such articles are individually curated and edited by Space Media Network staff on the basis of the report's information value to our industry and professional readership. Advertising does not imply endorsement, agreement or approval of any opinions, statements or information provided by Space Media Network on any Web page published or hosted by Space Media Network. General Data Protection Regulation (GDPR) Statement Our advertisers use various cookies and the like to deliver the best ad banner available at one time. All network advertising suppliers have GDPR policies (Legitimate Interest) that conform with EU regulations for data collection. By using our websites you consent to cookie based advertising. If you do not agree with this then you must stop using the websites from May 25, 2018. Privacy Statement. Additional information can be found here at About Us.