Tuesday, January 23, 2018
Contact us    |    Advertise    |   Help   RSS icon Twitter icon Facebook icon
    Home  ·  News  ·  Forum  ·  Stories  ·  Image Gallery  ·  Columns  ·  Encyclopedia  ·  Videos
Find: in

Scientists record the Earth's mysterious hum

Posted on Friday, 8 December, 2017 | Comment icon 13 comments

The hum is beneath the threshold of human hearing. Image Credit: CC BY-SA 3.0 NikoLang
Our planet is making a continuous low humming sound and nobody is quite sure what is causing it.
Efforts to directly detect the sound, known as 'the hum', have been ongoing since the 1950s, but now a team of researchers led by Martha Deen at the Paris Institute of Earth Physics have finally found a way to record the notorious sound using 57 seismometer stations situated in the Indian Ocean.

"A low noise level is needed to observe the small signal amplitude of the hum," the team wrote. "At the ocean bottom, the noise level at long periods is generally much higher than at land stations."

At between 2.9 and 4.5 millihertz, the hum is far below the threshold of human hearing.

The sound is caused by the slight expansion and contraction of the planet, however it remains unclear exactly why this happens. One theory suggests that the pounding of the waves may be to blame.

By directly analyzing the hum, scientists are now hoping to be able to fully explain the phenomenon and believe that it may even be possible to use it to help map the interior of the Earth.

Source: Yahoo! News | Comments (13)

Tags: Earth, Humming

Recent comments on this story
Comment icon #4 Posted by BeastieRunner on 8 December, 2017, 20:57
The irony of whining about whiners must be lost on you.
Comment icon #5 Posted by geraldnewfie on 8 December, 2017, 21:34
thats the upside down trying to get through :P
Comment icon #6 Posted by seanjo on 8 December, 2017, 22:01
Oooh look, a distressed whiney leftist...hows that communism working out for you? I mean don't you think after 100 years plus of abject failure, you brainiacs could think of some ideology that works?
Comment icon #7 Posted by eddword on 8 December, 2017, 23:38
Hmmmm,..I think I feel more like I do now,...Than I did, when I first got here...How about you?
Comment icon #8 Posted by docyabut2 on 9 December, 2017, 2:53
https://en.wikipedia.org/wiki/List_of_unexplained_sounds Could be many sounds.
Comment icon #9 Posted by DirtyDocMartens on 9 December, 2017, 17:31
Why do have to be like that? Surely there's somewhere on the Internet that's more appropriate than this forum. Okay, now go ahead and predictably insult me or make some cliche comment.
Comment icon #10 Posted by seanjo on 9 December, 2017, 20:03
Sorry, Friday night andI was drunk.
Comment icon #11 Posted by DirtyDocMartens on 10 December, 2017, 16:38
Lol, been there, man. No worries.
Comment icon #12 Posted by paperdyer on 11 December, 2017, 18:15
Maybe it's the whine of the planet's mainspring winding down like a clock. Remember we only have 600 years left. We need to find the key to rewind the planet.
Comment icon #13 Posted by BeastieRunner on 11 December, 2017, 19:20
I like this one best.

Please Login or Register to post a comment.

  On the forums
Chunk of North America is part of Australia
Scientists have identified an area of Australia that broke away from North America 1.7 billion years ago.
Study shows cats can be right or left-pawed
It's not only humans who favor one hand over the other - cats seem to share this preference as well.
Man dies after dog accidentally shoots him
An experienced hunter from Russia has died in a freak accident involving one of his own hunting dogs.
Scientists make tractor beam breakthrough
An acoustic tractor beam could make it possible to levitate large objects within the not-too-distant future.
Featured Videos
Gallery icon 
Brian Cox talks to Buzz Aldrin
Posted 1-18-2018 | 1 comment
Professor Brian Cox discusses space travel with legendary astronaut Buzz Aldrin.
Typing vs handwriting
Posted 1-16-2018 | 2 comments
Is typing on a computer better or worse for your memory then writing on paper ?
Can coding help avoid job automation ?
Posted 1-12-2018 | 0 comments
Taking up coding and technical skills to avoid automation may be counter-productive.
Dinosaur death match
Posted 1-8-2018 | 0 comments
A look at how various dinosaurs might have fared against the predators of their day.
Best records of 2017
Posted 1-4-2018 | 0 comments
A look back at some of the most bizarre and amazing world records of the last year.
 View: More videos
Stories & Experiences
Strange feeling
1-18-2018 | Different places
Unexplained voices
1-18-2018 | United States
First college apartment
12-31-2017 | Daytona Beach, FL
The night my niece was murdered
12-19-2017 | Delhi, Louisiana
Mysterious Headlights
12-10-2017 | Morgan County, Alabama
Possibly a child ghost
12-10-2017 | Edgewater, Maryland
True story about black-eyed kids
12-10-2017 | Portland oregon
Alien or paranormal encounter ?
12-10-2017 | United States
Ouija board experience
12-10-2017 | Ohio

         More stories | Send us your story
Top   |  Home   |   Forum   |   News   |   Image Gallery   |  Columns   |   Encyclopedia   |   Videos   |   Polls
UM-X 10.7 Unexplained-Mysteries.com 2001-2017
Privacy Policy and Disclaimer   |   Cookies   |   Advertise   |   Contact   |   Help/FAQ