Sing on ice

NEW TUNE: Music of the icebergs.  

An iceberg can cause a lot of trouble (remember the Titanic?) but did you know it could also sing. Researchers in the Antarctic found that an iceberg emits sound waves that are too low to be heard by the human ear but when the sounds are recorded and played back at higher speeds it sounds like "a swarm of bees or an orchestra warming up". The study, by the Alfred Wegener Institute for Polar and Marine Research, will be published in Science. The study dates back to 2002 when scientists were recording seismic signals and tectonic movements on an ice shelf in Antarctic. Tracking acoustic signals of immense clarity they found that there had been a collision between an iceberg and an underwater peninsula. The sounds were the result of water pushing its way through the crevices and tunnels in the iceberg. "The tune even goes up and down, just like a real song," scientist Vera Schlindwein was quoted as saying by the agency Reuters.

Complied by R. KIRTHIKA