[life] Why Fingernails on Blackboards Sound So Horrible … ‘Much time has been spent, over the past century, on working out exactly what it is about the sound of fingernails on a blackboard that’s so unpleasant. A new study pins the blame on psychology and the design of our ear canals…’
Why Do Fingernails On Blackboards Sound So Horrible?
This entry was posted on Monday, November 7th, 2011 at 8:47 am and is filed under Life, Weird.
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