Sleep & Learning/Zero
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Guests: Robert Stickgold Assistant Professor, Psychiatry Harvard Medical School Boston, Massachusetts Charles Seife Author, "Zero: The Biography of a Dangerous Idea" (Viking, 2000) Reporter, Science Washington, DC Though the number zero seems ordinary to us today--every grade-school kid knows that any number subracted from itself equals zero--the idea of zero was rejected by the Western world for centuries. In this hour, we'll talk about zero and its place in history, mathematics, and modern physics. Plus, why we need sleep to learn new tasks.

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