audio specialists have been continuously recording the sound of mains electricity. It is an all pervasive hum that we normally cannot hear. But boost it a little, and a metallic and not very pleasant buzz fills the air.
BLDGBLOG: Sound Signature
Yeah, well, I can both hear and feel mains electricity. Also bat-calls. My hearing in the "normal" ranges is diminishing with age but these other sounds are just becoming easier to hear. They also often trigger migraines. I know, I know, I should live in a hut on a hill with no electricity but, then, how would I access LJ and Ravelry?