Nature plays some card which takes a hold of the mother Earth and does not allow the mankind to interfere. They are in the form of the mysterious phenomenon which the science has failed to explain.
Let us know more about these acts of nature.
The hum is the phenomenon or group of a phenomenon which involves low frequency of sound like humming, rumbling or droning noise. This inaudible sound is reported by media of UK and the USA. They are named after the place like the Tahoe Hum or the Bristol Hum.