Tag Archive: sound

Is there sound on Mars?

Image credit: NASA/JPL-Caltech (not subject to copyright protection)

by Daniel Fink, MD, Chair, The Quiet Coalition

This fascinating article by Kenneth Chang in the New York Times describes Martian winds rattling the solar panels on the recently landed InSight lander. The sounds weren’t picked up by a microphone, Chang writes, rather they were captured by seismometers, instruments “designed for measuring the shaking of marsquakes picked up vibrations in the air — sound waves, in other words.” Said Chang, “[t]he seismometers act as the cochlea, the parts of your ears that convert the vibrations into nerve signals.”

It’s not clear to me if a human could hear the wind on Mars–the atmosphere is very thin, and of course a human would have to be wearing some sort of space suit, unlike in the Star Wars movies or Star Trek television shows–but provides an interesting sidelight (or side sound?) to space exploration.

You can listen to the sound, but Chang suggests that you “hook up a subwoofer or put on a pair of bass-heavy headphones. Otherwise, you might not hear anything.”  We advise that you skip the headphones and opt for NASA’s enhanced version:

Dr. Daniel Fink is a leading noise activist based in the Los Angeles area. He is the founding chair of The Quiet Coalition, an organization of science, health, and legal professionals concerned about the impacts of noise on health, environment, learning, productivity, and quality of life in America. Dr Fink also is the interim chair of Quiet Communities’ Health Advisory Council, and he served on the board of the American Tinnitus Association from 2015-2018.

The use of sound in medicine

Photo credit: Nuclear Regulatory Commission licensed under CC BY 2.0

by Daniel Fink, MD, Chair, The Quiet Coalition

Sound has medical uses. Music therapy has been used for decades, as has diagnostic ultrasound, e.g., echocardiography, gallbladder, and kidney ultrasound, and therapeutic ultrasound has been used in physical therapy.

Now, this report from NPR discusses the use of focused sound waves to ablate damaged brain tissue, relieving a farmer of a trembling hand.

Dr. Daniel Fink is a leading noise activist based in the Los Angeles area. He is the founding chair of The Quiet Coalition, an organization of science, health, and legal professionals concerned about the impacts of noise on health, environment, learning, productivity, and quality of life in America. Dr Fink also is the interim chair of Quiet Communities’ Health Advisory Council, and he served on the board of the American Tinnitus Association from 2015-2018.

The sounds of the unicorn of the sea

Alan Burdick, The New Yorker, writes about how researchers were able to tag six narwhals and capture the sounds they made over the course of the week, creating “an intimate sonic document of the life of the narwhal.” The researchers identified three types of sounds the narwhals make. The “first two, clicking and buzzing, are used to navigate and to hone in on prey,” and the third sound, calling, the researchers believe is used to communicate to one another. 

You can listen to them here.

 

“A Quiet Place” is so quiet

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that the audience is afraid of making noise. Reports have popped up saying the movie is so quiet that its audience is “too scared to eat their popcorn” because of the deafening silence. Not a bad thing in our book.

And apparently some others agree. Check out this review by Gary Thompson, The Philadelphia Inquirer: ‘A Quiet Place’: Aliens rid the earth of noisy people. Hear, hear.