Thursday, December 14, 2017
Contact us    |    Advertise    |   Help   RSS icon Twitter icon Facebook icon
    Home  ·  News  ·  Forum  ·  Stories  ·  Image Gallery  ·  Columns  ·  Encyclopedia  ·  Videos
Find: in
This news story is archived which means that, while it is still available to view, the information contained within may be outdated and the original source site/link may no longer be viewable.

For the most recent stories, please visit either the site's home page or main news section.

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
Forum posts:
Forum topics:
Members:

6053243
259763
171671

 
'Mannequin Skywalker' launch is successful
12-13-2017
Private space firm Blue Origin has completed a successful test launch of its rocket and crew capsule.
'Mystery creature' filmed by Sydney family
12-13-2017
65-year-old Fethi Ada and his family had been out fishing when they encountered something rather unusual.
Blood-filled parasites found trapped in amber
12-13-2017
Palaeontologists have discovered prehistoric parasites that once fed on the blood of dinosaurs.
Man-sized penguin fossil found in New Zealand
12-12-2017
The remains of an enormous prehistoric penguin have been found on a beach to the south of Christchurch.
Other news in this category
Woman has eclipse burned on to her retinas
Posted 12-9-2017 | 14 comments
One viewer of August's total solar eclipse ended up with eye damage in the exact shape of the Sun....
 
Scientists record the Earth's mysterious hum
Posted 12-8-2017 | 13 comments
Our planet is making a continuous low humming sound and nobody is quite sure what is causing it....
 
Ice Age cave network found beneath Montreal
Posted 12-6-2017 | 4 comments
Two cave experts have discovered a hidden network of caves underneath the busy streets of the city....
 
Google's AI has built another, superior AI
Posted 12-5-2017 | 33 comments
The Google Brain project has created an AI that is capable of designing a 'child' AI superior to itself....
 
Silent animation makes a 'thudding' sound
Posted 12-4-2017 | 28 comments
An animated GIF of a jumping pylon seems to create the illusion of sound even when there is none....
 
World's longest-lasting rainbow recorded
Posted 12-2-2017 | 7 comments
A record-breaking rainbow lasting almost nine hours has been recorded by two scientists in Taiwan....
 
Earthworms can reproduce in Martian soil
Posted 11-28-2017 | 28 comments
The results of a recent experiment suggest that the soil on Mars is likely to be suitable for agriculture....
 
Real-life Iron Man brings his suit to Salford
Posted 11-26-2017 | 17 comments
Richard Browning stunned onlookers this week as he flew around a business park in Salford, England....
 
Android 'citizen' Sophia wants to have children
Posted 11-25-2017 | 19 comments
The eerily human-like creation has stated during a recent interview that she wants to start a family....
 
Dolly the sheep had no health abnormalities
Posted 11-23-2017 | 3 comments
A new study has indicated that the famous cloned sheep had not suffered from any abnormal health issues....
 
Big earthquakes to occur more often in 2018
Posted 11-20-2017 | 23 comments
A periodic slowing of the rotation of the Earth is likely to result in an upsurge in earthquakes next year....
 

 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