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Bomb Detecting Spray

November 28, 2007

A new spray makes would-be bombers' hands turn red.

November 27, 2007

Scientists have invented the world's smallest radio.

November 26, 2007

Researchers have developed a new way for children once left behind by their peers to explore the …

November 23, 2007

Mysteries of nature: Why do some leaves turn red in the fall? Global warming and the future of …

November 22, 2007

Fall colors come in several shades. But why the different colors?

November 21, 2007

A listener asks: If you shave, does hair really grow back thicker and darker than before?

November 20, 2007

Engineers have developed a mathematical algorithm for optimizing bus schedules.

November 19, 2007

Climate change may alter how rivers flow in the future, and man-made dams could make things worse.

November 16, 2007

A snail hides in plain sight. A high-speed continental collision. And what fossils tell us about …

November 15, 2007

Warmer temperatures have consistently preceded more extinctions throughout Earth's history.