Now playing: Earth’s Hum
Earth’s Hum Sounds More Mysterious Than Ever
Earth gives off a relentless hum of countless notes completely imperceptible to the human ear, like a giant, exceptionally quiet symphony, but the origin of this sound remains a mystery.
Now unexpected powerful tunes have been discovered in this hum. These new findings could shed light on the source of this enigma.
This discovery should force researchers to significantly rethink what causes Earth’s hum. While the spheroidal oscillations might be caused by forces squeezing down on the planet – say, pressure from ocean or atmospheric waves – the twisting ring-like phenomena might be caused by forces shearing across the world’s surface, from the oceans, atmosphere or possibly even the sun.
Future investigations of this part of the hum will prove challenging, as “this is a very small signal that is hard to measure, and the excitation is probably due to multiple interactions in a complex system,” said researcher Rudolf Widmer-Schnidrig, a geoscientist at the University of Stuttgart, Germany. </em>
What could it be? I like Mark Morford’s take on it:
Me, I like to think of the Earth as essentially a giant Tibetan singing bowl, flicked by the middle finger of God and set to a mesmerizing, low ring for about 10 billion years until the tone begins to fade and the vibration slows and eventually the sound completely disappears into nothingness and the birds are all, hey what the hell happened to the music? And God just shrugs and goes, well that was interesting.
Heh.
