The universal revulsion to the sound of fingernails on a chalkboard
at LiveScience, asks: Why Does This Sound Put You On Edge?
Short answer: “[T]his ear-splitting noise has the same frequency as that of a crying baby and a human scream, indicating that these sounds are tied to survival.”
Thanks to @QuietMark for the link.
December 18, 2016 Disorderly Sound, Medical and scientific news 0 Read more >