Mariette DiChristina

Mariette DiChristina oversees Scientific American and ScientificAmerican.com. A science journalist for more than 20 years, she is the former president of the National Association of Science Writers.

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Never Tell People How Old They Look

Age discrimination affects us all. James Hamblin turns to a colleague for advice.

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Would You Live in a Treehouse?

A treehouse can be an ideal office space, vacation rental, and way of reconnecting with your youth.

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Pittsburgh: 'Better Than You Thought'

How Steel City became a bikeable, walkable paradise

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A Four-Dimensional Tour of Boston

In this groundbreaking video, time moves at multiple speeds within a single frame.

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Who Made Pop Music So Repetitive? You Did.

If pop music is too homogenous, that's because listeners want it that way.

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