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Actor, playwright and journalist Anna Deavere Smith talks about the health care crisis and her play about people dealing with illness, health and the health care system, Let Me Down Easy . The performance can be streamed on the PBS website, PBS.org , as part of the Great Performances series. [More]

By Chloe McIvor of Nature magazine Preschool children spontaneously invent experiments in their play, according to research published this month in Cognition. The findings suggest that basic scientific principles help very young brains to learn about the world. Psychologists have been drawing a comparison between cognitive development and science for years -- an idea referred to as 'the child as scientist'

30 Under 30: In Video Show Us What You've Got. That's what we asked our 30 Under 30 candidates to do this year. And did they ever.

PGT: Tiger Woods not only decimated a generation of his peers with his play, but he suffocated the current crop of young American players that are expected to live up to his standard.

"The Normal Heart" has been nominated for five Tony awards, including Best Revival of a Play and focuses on the early days of the AIDS epidemic. Ben Tracy talks to playwright Larry Kramer, who based the main character in the play on himself

Hideki Matsuyama hoped his play at the Masters would bring some joy to earthquake victims in Japan.