Why 'singing' sand dunes hum certain notes
Thursday, October 25, 2012 - 08:30
in Physics & Chemistry
What does Elvis Presley have in common with a sand dune? No, it's not that people sometimes spot both in the vicinity of Las Vegas. Instead, some sand dunes, like The King, can sing. And new research looking for clues to how streams of sand can sing may explain why some dunes croon in more than one pitch at the same time.