Robert Siegel talks to Michael Oehler, a music management professor at University of Cologne in Germany, about his study on why people get so irritated by the sound of fingernails on a chalkboard. Oehler led a team of researchers from the University of Cologne and the University of Vienna in a study designed to pinpoint the source of this and similarly irritating sounds. Scientists found that the most obnoxious elements of the noises may be amplified by the shape of the human ear.
Actor James Gandolfini, 51, has reportedly died. Variety magazine reports that he suffered a "sudden stroke." The cause of death is not yet known with certainty, but HBO says the actor may have suffered a heart attack.
The prize is sometimes called the "Nobel Prize for food and agriculture." And this year's winners include Monsanto executive Robert Fraley, a pioneer in genetically engineered crops. If there's a single person who personifies the company's controversial role in American agriculture, it's probably Fraley.
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