Episode Image

Gwen's Take: The Chasm Close to Home

I watched the president's address to the Morehouse class of 2013 this week with special interest. Part of the reason was personal: I had a great time delivering the commencement speech there two years ago. A sea of promising, educated...
Episode Image

Remembering Memorial Day

Sometimes the meaning of Memorial Day gets lost among the rush to beaches and backyard BBQs. You can honor those who have served in a variety of ways — watch the Memorial Day Concert, record the history of a vet for the National Archives, or find resources for military families and returning vets. Explore: National Memorial [...]

The Dirt: This Week in Nature

New World Record for Atmospheric Carbon Dioxide. Some world records provide a reason to celebrate. Not this one. It is estimated that in the late eighteenth century, carbon dioxide levels in the air would have been about 280 ppm (parts per million). Hawaii’s Mauna Loa Observatory has been measuring atmospheric carbon dioxide levels since 1958. The [...]

The Egyptian Bow

See how the ancient Egyptians built their deadly composite bows.
Episode Image

“Stuck” and Why We Shouldn’t Discount Documentaries Used Primarily as Tools for Change

Tom Roston questions why documentaries held in high regard have to be about "storytelling" and "cinema."