Why Are Nails On A Blackboard Irritating?

“Fingernails on a blackboard. Why does the very phrase send chills down one’s back? The question has annoyed scientists for at least 2,300 years. Aristotle mentioned “hard sounds”, but didn’t try very hard to explain them.”

Amusing that this is such a common phenomenon…. eeeeks… Check out the whole digg story.. quite interesting :D!

read more | digg story

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