Latest topics
» Jerzy Babkowski (AKA ZAP) "The Great Scam Reset Via Beijing"
Today at 12:54 am by 4-truth

» POOFness for SEPT 20: HIGHER LEVEL STAFF NEEDS YOUR HELP AND OTHER LIES FROM GHOULKOWSKI
Today at 12:33 am by 4-truth

» Bad-clown Rising - SABU
Yesterday at 11:36 pm by PurpleSkyz

» Body Language: You Owe Me!
Yesterday at 7:10 pm by PurpleSkyz

» John Kerry Facing Prison Time For Illegal, Secret Meetings With Hostile Regime
Yesterday at 7:07 pm by PurpleSkyz

» America's #1 Psychic "The War has Started", Michelle Whitedove
Yesterday at 5:57 pm by PurpleSkyz

» Task #1: Merkaba Meditation
Yesterday at 5:54 pm by PurpleSkyz

» Netflix Show ‘Ascension’: Secret Space Program/Nazi Eugenics/Operation Brain Drain/MK Ultra Techniques for starters
Yesterday at 5:50 pm by PurpleSkyz

» Dissident Catholic Clergy in Nine Countries Challenge and Threaten to Separate from the Church of Rome over Child Abuse: ITCCS
Yesterday at 5:43 pm by PurpleSkyz

» It is normally PITCH dark out there...strange luminescence in sky
Yesterday at 5:39 pm by PurpleSkyz

» Erich von Däniken! Everything You Know Will CHANGE!
Yesterday at 5:35 pm by PurpleSkyz

» The RH Negative Blood Type: Atlantis Theory
Yesterday at 5:33 pm by PurpleSkyz

» Graham Hancock Answers Some of the BIGGEST Ancient Mysteries of Our Time
Yesterday at 5:30 pm by PurpleSkyz

» NIBIRU News ~ Black Star Report
Yesterday at 2:10 pm by PurpleSkyz

» POOFness for SEPT 19: MIDWEEK BY ZAP GHOULKOWSKI THE DONATION SCAMMER
Yesterday at 2:06 pm by RamblerNash

» Is Alex Jones Crumbling Before Our Eyes? Looks Like It in THIS Interview…
Yesterday at 10:31 am by PurpleSkyz

» Multi-Dimensional Consciousness Equilibrium (Creation and Extra-Dimensional Storage of Self-Knowledge)
Yesterday at 10:26 am by PurpleSkyz

» #Disclosure Benjamin Fulford Explains Sudden Closure of Seven Solar Observatories
Yesterday at 10:23 am by PurpleSkyz

» UFO News ~ MUFON CASE 95004 Chicago, IL, US plus MORE
Yesterday at 9:57 am by PurpleSkyz

» Nearby Super-Earth Just Discovered - 'Planet Vulcan' Orbits Sun Featured in 'Star Trek'
Yesterday at 9:47 am by PurpleSkyz

» The Ark of the Covenant: The most advanced extraterrestrial technology in the Universe
Yesterday at 9:41 am by PurpleSkyz

» Solar Observatory Clousure, Hackers and Child Porn??
Yesterday at 9:38 am by PurpleSkyz

» Enoch | The Great Pyramid of Egypt
Yesterday at 9:27 am by PurpleSkyz

» Unimaginable! "Can't Believe What We Just Witnessed In Hawaii"
Yesterday at 9:24 am by PurpleSkyz

» Double Star System Blasts Massive Outburst Towards Earth, Spotted by Astronomers
Yesterday at 9:20 am by PurpleSkyz

» Man is literally at eye level with a rare sky phenomenon from a jet above San Francisco!
Yesterday at 9:16 am by PurpleSkyz

» FULL Benjamin Fulford 9-17-18
Yesterday at 8:57 am by PurpleSkyz

» NIBIRU News ~ BREAKING PLANET X NEWS AND VIEWS, NIBIRU IS HERE NOW!! plus MORE
Yesterday at 8:53 am by PurpleSkyz

» Project Camelot - UPDATES RE: JOURNALISM & WHISTLEBLOWERS
Yesterday at 8:48 am by PurpleSkyz

» Mystery in Midway - "Flaming Hole" in ground spawns unusual geological event
Yesterday at 8:43 am by PurpleSkyz

» White UFO Seen On Live NASA Space Station Cam
Yesterday at 8:38 am by PurpleSkyz

» #Q Anon: CARPET BOMBS !!! MOAB COMING! PEDO ARREST UPDATE! plus more
Yesterday at 8:33 am by PurpleSkyz

» Deep State Unmasked: DOJ Official Resists ‘From Inside’ and ‘Can’t Get Fired’
Yesterday at 8:24 am by PurpleSkyz

CLICK THE SUBSCRIBE BUTTON BELOW TO RECEIVE OUR DAILY NEWSLETTER

A 2ND EMAIL COMPLETES THE ACTIVATION PROCESS




CLICK THE PURPLE BUTTON TO VIEW OUR LATEST POSTS





CONTACT PURPLESKYZ
FOR DETAILS


Key Word Topics:
11:11, Aliens, Angels, Antarctica, Ascension, Assange, Astral Projection, Auras, Bankers, Bitcoin, Blood Type, Booms, BRICS, Cabal, Cannabis, CBD, CERN, Chemtrails, CME's, Consciousness, Conspiracy Theories, Crypto Currency, Crystals, Dinar, Dinar Scam, Disclosure, Earthquakes, EMF, Empaths, Environment, ESP, ET's, False Flags, Federal Reserve, Flooding, Fluoride, Fracking, Fraud, Fukushima,GMO's, Herbs, History, Holistic, Illuminati, IMF, ISS, Ley Lines, Lucid Dreaming, Mandela Effect, Medical, Meteor, MKUltra, Monsanto, Morgellons, NASA, Nature, Nesara, Nibiru, Night Sky, NDE's, Numerology, NWO, OD's, Organic, Paranormal, Pizzagate, Planet X, Predictive Programming, Protests, Psychic, Q Anon, Radiation, Reincarnation, Remote Viewing, RH Negative Blood, RV, Sacred Geometry, Scams, Science, SETI, Shadow People, Shift, Sink Holes, Smart Meters, Space Force, Space X, Spirit Animals, Sun Simulator, Synchronicity, Technology, TDA, THC, UFO, Vatican, Vaccines, Volcano, WIFI, Wikileaks

You are not connected. Please login or register

Out Of Mind » THE INSANITY OF REALITY » SCIENCE » Metamaterial that bends, shapes and focuses sound waves

Metamaterial that bends, shapes and focuses sound waves

Go down  Message [Page 1 of 1]

PurpleSkyz

avatar
Admin
Metamaterial that bends, shapes and focuses sound waves








   
A super-material that bends, shapes and focuses sound waves that pass through it has been invented by scientists.
The creation pushes the boundaries of metamaterials – a new class of finely-engineered surfaces that perform nature-defying tasks.
These materials have already shown remarkable results with light manipulation, allowing scientists to create a real-life version of Harry Potter’s invisibility cloak, for example.
But a research team from the Universities of Sussex and Bristol have now shown that they also work with sound waves, which could transform medical imaging and personal audio.
Finely shaped sound fields are used in medical imaging and therapy as well as in a wide range of consumer products such as audio spotlights and ultrasonic haptics. The research published today (Monday 27 February 2017) in Nature Communications shows a simple and cheap way of creating these shaped sound waves using acoustic metamaterials.
Metamaterial bricks are assembled into a layer to produce a meta-surface, which could have applications across healthcare and entertainment
These space coiling bricks act to slow down sound waves, meaning that they can be transformed into any required sound field
Nature Communications – Metamaterial bricks and quantization of meta-surfaces

The collaborative research team assembled a metamaterial layer out of lots of small bricks that each coil up space. The space coiling bricks act to slow down the sound meaning that incoming sound waves can be transformed into any required sound field.
The new metamaterial layers could be used in many applications. Large versions could be used to direct or focus sound to a particular location and form an audio hotspot. Much smaller versions could be used to focus high intensity ultrasound to destroy tumours deep within the body. Here, a metamaterial layer could be tailor-made to fit the body of a patient and tuned to focus the ultrasound waves where they are needed most. In both cases the layer could be fitted to existing loudspeaker technology and be made rapidly and cheaply.
Dr Gianluca Memoli, from the Interact Lab at the University of Sussex who led the study, said: “Our metamaterial bricks can be 3D printed and then assembled together to form any sound field you can imagine. We also showed how this can be achieved with only a small number of different bricks. You can think of a box of our metamaterial bricks as a do-it-yourself acoustics kit.
Professor Sriram Subramanian, Head of the Interact Lab at the University of Sussex, added: “We want to create acoustic devices that manipulate sound with the same ease and flexibility with which LCDs and projectors do to light. Our research opens the door to new acoustic devices combining diffraction, scattering and refraction, and enables the future development of fully digital spatial sound modulators, which can be controlled in real time with minimal resources.”
Bruce Drinkwater, Professor of Ultrasonics at the University of Bristol, explained: “In the future I think there will be many exciting applications of this technology. We are now working on making the metamaterial layers dynamically reconfigurable. This will mean we can make cheap imaging systems which could be used either for medical diagnostics or crack detection.”



https://youtu.be/BcVxRyvipcU

Abstract
Controlling acoustic fields is crucial in diverse applications such as loudspeaker design, ultrasound imaging and therapy or acoustic particle manipulation. The current approaches use fixed lenses or expensive phased arrays. Here, using a process of analogue-to-digital conversion and wavelet decomposition, we develop the notion of quantal meta-surfaces. The quanta here are small, pre-manufactured three-dimensional units—which we call metamaterial bricks—each encoding a specific phase delay. These bricks can be assembled into meta-surfaces to generate any diffraction-limited acoustic field. We apply this methodology to show experimental examples of acoustic focusing, steering and, after stacking single meta-surfaces into layers, the more complex field of an acoustic tractor beam. We demonstrate experimentally single-sided air-borne acoustic levitation using meta-layers at various bit-rates: from a 4-bit uniform to 3-bit non-uniform quantization in phase. This powerful methodology dramatically simplifies the design of acoustic devices and provides a key-step towards realizing spatial sound modulators.
SOURCES – University of Sussex, Nature Communications, Youtube


Thanks to: http://www.nextbigfuture.com
and: http://theearthplan.blogspot.com



  

Back to top  Message [Page 1 of 1]

Permissions in this forum:
You cannot reply to topics in this forum