David Kestenbaum David Kestenbaum is a science correspondent for NPR. His job allows him to combine his extensive background in physics with his love of broadcast journalism.

Experts Suggest OPEC's Power Over Oil Prices Is Waning

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Textbook Arbitrage: Making Money Off Used Books

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The Independent Oil Producer You Usually Don't Hear From

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How College Students Battled Textbook Publishers To A Draw, In 3 Graphs

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Why Do We Sign For Things? A Rabbi, A Lawyer And A MasterCard Exec Explain

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General Motors

Typewriters, Underwater Hotels And Picturephones: The Future, As Seen From 1964

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Everyone Goes To The Store To Get Milk. So Why's It Way In The Back?

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Evaluating The Benefits And Costs Of Patents

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When Ikea Raises Its Minimum Wage, Where Does The Money Come From?

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Volatility Index Indicates Wall Street Is Bored

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Peanut Butter M&M's are larger and more irregular than standard M&M's. Quoctrung Bui/NPR hide caption

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Why A Pack Of Peanut Butter M&M's Weighs A Tiny Bit Less Than A Regular Pack

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On The Internet, A Penny Is Nothing To Sneeze At

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A Stradivarius violin at the restoration and research laboratory of the Musee de la Musique, Paris, in 2009. Patrick Kovarik/AFP/Getty Images hide caption

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Is A Stradivarius Just A Violin?

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The Mystery Of Tappan Zee: Why Build A Bridge Where The River's Wide?

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The History Of Light, In 6 Minutes And 47 Seconds

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