Subject: the disturbing sound of scratching on a blackboard
Date: Fri Jul 24 22:39:43 1998
Posted by dan jetter
Grade level: grad (science)
School: hunter college
City: new york State/Province: ny
Country: us
Area of science: Biophysics
ID: 901337983.Bp
Message:
Why is the sound of scratching (of chalk or fingernails) on a
blackboard so disturbing to onlookers?
Re: the disturbing sound of scratching on a blackboard
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