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New metamaterial can silence sound

August 18, 2019 - acoustic metamaterial are endless, concludes the report. As noise pollution increasingly becomes a concern, stifling noise may soon prove to be a blessing.

Sources include:

ScienceDaily.com

MentalFloss.com

TheGoodBody.com

EnvironmentalPollutionCenters.org

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Health Ranger: “Acoustic forensic evidence” proves more than one shooter at Vegas massacre

October 11, 2017 -

The technique he used to isolate two separate shooters in audio and video posted online by eyewitnesses is the same one he regularly uses when conducting other research and testing at CWC Labs, where he is the science director. The technique, Mass Spec analysis, allows him to “pull signals out of noise,” which lets him isolate and ‘measure’ signals from instrument detection sequences.

In launching his explanation of what happened that night, Adams discussed a few basics ...

EXCLUSIVE: Forensic acoustic analysis confirms existence (and range) of second Las Vegas shooter

October 09, 2017 -

In essence, because of the differences in the speed of sound vs. the speed of the bullets from a known cartridge (.223 Remington, in this case), the time lag between the last bullet hitting the pavement and the last audible report of the rifle muzzle can be used to very accurately calculate the range of the shooter (relative to the position of the person recording the video).

More importantly, when the audio from the Las Vegas shooting is analyzed, it reveals TWO shooters ...

Research team uses metamaterials to create an “acoustic telescope” that can transmit messages to an individual in a crowd

November 22, 2019 -

Academics from the University of Sussex and their colleagues at the University of Bristol demonstrated how they used acoustic metamaterials to control sound like light.

Their metamaterial device was able to zoom in on a single person. It was developed alongside a collimator that sent sound from an ordinary speaker in the form of a directional beam.

Their technology made it possible to make directional speakers that might target one person in a heavily ...

Health Ranger used “forensic acoustic” analysis to determine there was a second shooter in Vegas on night of slaughter

October 29, 2017 -

The technique he used is one that he often uses when conducting other research and testing at CWC Labs, where he is the science director — Mass Spec analysis to “pull signals out of noise,” which is something he does on a daily basis.

In launching his explanation of what happened that night, Adams discussed a few basics of physics as they pertain to the velocity of bullets fired from the kind of weapons found in Paddock’s Mandalay Bay Casino hotel room — primarily .223 ...

Sci-fi sound wave device makes Star Trek style tractor beams out of powerful mini-tornadoes that can manipulate large objects

February 14, 2018 -

That's right, with the power of their newly-invented acoustic tractor beam, the team of engineers was able to show that it's possible to hold particles in mid-air. So far, they have only tested it on a two-centimeter piece of polystyrene sphere, but it's a good start, considering the technology could have lots of different applications -- out on land or even in other locations.

According to the researchers, they have been working on the development of their acoustic ...

Discovery: The sun’s magnetic waves react to sound

July 04, 2019 -

Researchers from Northumbria University made the discovery, which flew in the face of established theories on the behavior of the sun's magnetic waves. They published their findings in the journal Nature Astronomy.

The U.K. team pored over a decade's worth of data on the sun. They determined that the acoustic waves originate from within the star and trigger changes in the Alfvenic waves of the corona, the outermost layer of the sun.

The magnetic waves in this atmospheric ...

5G is a weapons system designed to KILL people, says weapons expert Mark Steele

January 03, 2023 -

In an expert report, Steele said 5G represents a heinous crime if a person understands the motive behind its deployment.

Steele previously acted as a witness and provided statements in several court cases, exposing the lack of any credible evidence that the 5G light-emitting diode (LED) network and planned neural connection to the 5G grid are safe. He also exposed the nano metamaterial technologies that are contaminating Wuhan coronavirus (COVID-19) vaccinations.

His ...

New noninvasive neurotechnology for vets: Study finds therapy using sound is effective for PTSD – without the side effects of medication

January 07, 2018 -

Dr. Charles Tegeler, the study's principal investigator and professor of neurology at the Wake Forest School of Medicine, PTSD is a prevalent concern among those in the military, whether its current symptoms are diagnosed or not.

Despite the available medications that can be used to manage certain PTSD symptoms, they often come with side effects. There are also other treatments available, but some individuals may not acclimatize to them while others are not as beneficial ...

“Smart” windows made from common glass and cheap nanocrystals

June 12, 2018 -

Conventional infrared (IR)-blocking windows are made from a special kind of glass that lets in light but filters out any radiation that transfers heat. As a result, they can keep buildings bright and cool at the same time, reducing costs spent on artificial lighting and cooling systems.

This "magic" is made possible by a layer of silver applied to one side of the glass, turning the entire pane into something akin to a mirror. Although effective, this coating also raises ...

A new dawn for medicine: Light-powered micromotors shatter a decades-old scientific barrier

September 29, 2025 -

In a landmark achievement that promises to redefine the limits of medical technology, a team of researchers from the University of Gothenburg has successfully built the smallest on-chip motors in history. These microscopic machines, powered not by wires or batteries but by beams of light, are so minuscule they can fit inside a human hair. This breakthrough, achieved by circumventing a fundamental engineering problem that has stalled progress for over ...

BOMBSHELL: Health Ranger identifies distance of second shooter at Las Vegas massacre… and it’s NOT the Mandalay Bay hotel

October 08, 2017 -

After a detailed forensic acoustics analysis rooted in science and physics, I have affirmatively identified the range / distance of a second shooter at the Las Vegas massacre. A detailed analysis video, complete with two whiteboards explaining the acoustics science, will be posted here this Tuesday.

UPDATE: The video has now been released! See the full video, below...I have also forensically confirmed that some rifle rounds were, indeed, coming from a range ...

High-speed hand dryers in public restrooms found to emit INSANE levels of ear-damaging noise

June 01, 2017 -

As part of the study, the research team conducted an acoustic test on various high-speed driers and found that the sound decibels produced by these machines were 11 times higher in a typical public restroom compared with a product testing laboratory. The research team noted that this effect forces hearing aid users to turn off their devices. In turn, this causes discomfort among dementia patients, and navigation issues for visually-impaired individuals.

"Manufacturers tend ...

Bats can anticipate their prey’s movements by building predictive models on the fly, says new study

December 25, 2020 -

In a newly published study, Johns Hopkins University (JHU) researchers explored the strategies bats employ to hunt at night using only their hearing. They hypothesized that echolocating bats build internal prediction models from dynamic acoustic stimuli to anticipate the future location of moving auditory targets. Using mathematical models, the researchers were able to not only quantify the direction of a bat's sonar beam aim and echolocation call rate, but also differentiate ...

How do cell phones cause cancer? Studies explain

July 12, 2020 -

Cell phones increase risk of developing brain tumors

Current research singled out two types of brain tumor -- the malignant gliomas and the benign acoustic neuromas -- that arise due to exposure to cell phone radiation.

Gliomas are one of the most common types of brain tumors. They occur in the glial cells, which are located around nerve cells, providing support and insulation between them. Like most types of brain tumors, the etiology of gliomas is unknown. People considered ...

Cows don’t just moo – they also talk about the weather, say scientists

September 06, 2021 -

The team of researchers created a software program that they dubbed "Google Translate for cows" to get a better idea of what the animals are saying when they moo. They did this by listening to Holstein-Fresian heifers, a European breed, mooing into a microphone and analyzing their pitch.

They also found that each animal retains its own distinct moo and can give cues in different situations to maintain contact with the rest of the herd. They are said to be able to express ...

Drumming has multiple health benefits for the body, mind, and soul

May 27, 2019 -

Whether you're just listening to it or actually engaging in it yourself, drumming is an experience that affects not just the ears, but also the mind and soul. By engaging the many facets of the human sensory profile, drumming creates what Sayer Ji from GreenMedInfo.com describes as "a feeling of deep connection to self, other, the Earth, and what can only be explained as a kind of ecstatic openness to Life itself."

Beyond this, drumming would seem to enhance feelings of ...

Deep-learning AI can determine what song is playing in your head

July 11, 2018 -

Apps like Shazam employ similar machine learning that let them identify a song by listening to it. But this is on a wholly different level of intelligence.

Researchers from the University of California, Berkeley (UC Berkeley) started working on their AI in 2014. Study author Brian Pasley and his teammates attached electrodes to the heads of volunteers and measured brain activity while the participants were speaking.

After finding out the connection between brain ...

More evidence emerges that cell phones trigger abnormal cell growth and cancer

May 03, 2018 -

In March 2018, the Ramazzini Institute published the results of a long-term animal study where rats were exposed to the radio frequency (RF) radiation generated by cell phones throughout their lives. The Italian researchers reported that heavy exposure to cell phone radiation was linked with increased appearances of Schwann cell tumors in the brain and heart.

The Ramazzini researchers urged that cell phones should be re-classified as "probable" carcinogens instead of merely ...

Silent spy: Amazon’s Alexa can listen for more than just its name even while in Sleep mode

February 27, 2018 -

Amazon later revealed that Alexa's ability to simply ignore the sound cues from the commercial during the broadcast was made possible by something called acoustic fingerprint technology. This is what allowed all of the Alexa devices in the wild, and listening in during the live broadcast, to easily distinguish between the words that typically trigger them to wake up and the commands that were given by actual users.

Of course, as a new report now posits, Amazon had a ...