Monday, May 1, 2017
Contact us    |    Advertise    |   Help   RSS icon Twitter icon Facebook icon
    Home  ·  News  ·  Forum  ·  Stories  ·  Image Gallery  ·  Columns  ·  Encyclopedia  ·  Videos
Find: in

Mystery of the singing sand dunes


Posted on Saturday, 3 November, 2012 | Comment icon 15 comments | News tip by: Still Waters


Image credit: CC 2.0 Joadl

 
Three scientists believe they've determined why some sand dunes produce a strange humming sound.

The mystery of the 'singing sand dunes' has baffled for centuries. When sand grains shuffle down dunes under certain circumstances they produce a deep groaning sound - something that Marco Polo once attributed to evil spirits. But how exactly are these sounds produced and how do some dunes produce more than one note at a time ?

Three scientists from Paris set out to find the answers to these questions. Deliberately triggering avalanches at sand dunes in Morocco and Oman, the trio noted that each dune seemed to create a sound in a different note. What they discovered is that the sound is caused by a constant stream of collisions between sand particles and that the size of the particles dictate which sound is made.

"When Marco Polo heard it in China, he suspected evil spirits."

  View: Full article |  Source: National Geographic

  Discuss: View comments (15)

   


 

Recent comments on this story
Comment icon #6 Posted by Mnemonix on 3 November, 2012, 16:38
...or it could just be evil spirits
Comment icon #7 Posted by JGirl on 3 November, 2012, 16:51
this is just as cool as the ringing rocks http://en.wikipedia.org/wiki/Ringing_rocks
Comment icon #8 Posted by Mnemonix on 3 November, 2012, 16:54
this is just as cool as the ringing rocks http://en.wikipedia....i/Ringing_rocks I can rest in peace knowing rocks can sing. Uh, I mean ring.
Comment icon #9 Posted by JGirl on 3 November, 2012, 18:30
I can rest in peace knowing rocks can sing. Uh, I mean ring. they can move across the ground by themselves too...
Comment icon #10 Posted by Ashiene on 3 November, 2012, 19:28
I would like to hear the explanation behind the mysterious music at certain lakes in the early morning or evening.
Comment icon #11 Posted by Mag357 on 3 November, 2012, 22:30
I've heard trees whistle. But then I guess that was the wind blowing through them. lol
Comment icon #12 Posted by Sundew on 4 November, 2012, 0:46
Bet they are humming Klaus Schulze's tune "Frank Herbert".
Comment icon #13 Posted by K.Ravi on 4 November, 2012, 1:07
Just last week we had a cyclonic depression and winds at 45-60 kmph were blowing, all trees were swaying and when the windows were closed, somewhere through a small hole the winds were comming and making a whispering noise,, wooooooooooiiimmmmmmmmmmmmmm like that, my mom listened it and even i listened it, i then immediately thought of EVPs
Comment icon #14 Posted by Invader Ebony on 4 November, 2012, 5:40
I don't blame them for thinking the sounds were connected with evil spirits... eerie!!
Comment icon #15 Posted by MidKn13ght on 15 November, 2012, 17:32
Are you sure its not all the dune beatles with gas???


Please Login or Register to post a comment.


  On the forums
Virgin Galactic to initiate flights in 2018
4-30-2017
Richard Branson's fledgling space tourism firm is aiming to begin flying tourists in to space next year.
Joint life-seeking Europa mission proposed
4-30-2017
A new proposal has been put forward to send a spacecraft to look for signs of alien life on Europa.
Did Vikings bury, cremate 'dead' houses ?
4-30-2017
There is evidence to suggest that Viking longhouses were 'buried' by being covered in mounds of Earth.
Real-life Iron Man shows off suit in Vancouver
4-29-2017
The inventor of the impressive flying suit demonstrated his creation at this week's TED conference.
Other news in this category
Real-life Iron Man shows off suit in Vancouver
Posted 4-29-2017 | 3 comments
The inventor of the impressive flying suit demonstrated his creation at this week's TED conference....
 
Time travel is 'mathematically possible'
Posted 4-29-2017 | 18 comments
According to Professor Ben Tippett, traveling through time is not outside the realms of possibility....
 
New 'Kitty Hawk' flying car footage revealed
Posted 4-24-2017 | 22 comments
The company behind the futuristic aerial vehicle was financially backed by Google founder Larry Page....
 
Scientists unravel how and when people dream
Posted 4-20-2017 | 4 comments
Researchers have been working on a new way to identify the parts of the brain responsible for dreaming....
 
Vast Canadian river disappeared in four days
Posted 4-18-2017 | 11 comments
Last year the Slims river totally vanished in what is thought to be a modern case of 'river piracy'....
 
Scientists create fluid with 'negative mass'
Posted 4-18-2017 | 16 comments
Created at Washington State University, the bizarre fluid defies Isaac Newton's Second Law of Motion....
 
Russian robot can shoot guns with both arms
Posted 4-15-2017 | 27 comments
Russia's deputy Prime Minister Dmitry Rogozin has insisted that the new robot is 'not a Terminator'....
 
New device can draw water out of thin air
Posted 4-14-2017 | 18 comments
Scientists may have found a way to provide millions of people around the world with fresh water....
 
Scientists set to geoengineer the atmosphere
Posted 4-14-2017 | 11 comments
For a new experiment, Harvard researchers are planning to spray aerosols in to the Earth's stratosphere....
 
Scientists find world's deepest life forms
Posted 4-11-2017 | 1 comment
Researchers have found evidence of microbes surviving up to six miles beneath the Mariana Trench....
 
Japanese scientists to drill in to the mantle
Posted 4-9-2017 | 15 comments
The aim will be to drill all the way down through the Earth's crust for the first time in history....
 

 View: More news in this category
 
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