Roland Ennos

Jun. 12, 2009

Why Do We Have Fingerprints?

The standard answer is that fingerprints increase friction, improving the grip of the fingertips. New research, however, says that may not be the case.

fingerprints, evolution

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Michael Pollan Talks Plants and Food

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Ira Asks: How Do They Make Eyeglasses?

You deliver your prescription to an optician, and they return with a pair of eyeglass lenses tailored precisely to your personal vision quirks. But how?

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