Reporter Amanda Drane recently turned me on to this weird phenomenon that’s been recorded around the world. Out of nowhere, in the day or night, in the city or in the woods people have recorded the incredibly loud sound I can only describe as a giant sky whale or a mammoth train grinding to a halt while blowing a fog horn and banging on a gong. You’ve got to hear this for yourself. What do you think this is? Ever hear it in the Valley?