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Beady Water

January 7, 2003

Why does water bead up? (Tries to minimize surface area because of forces between molecules)

December 18, 2002

The National Science Foundation (NSF) is funding a program to assemble the tree of life.

October 30, 2002

Immunotherapy using lymphocytes to destroy melanoma

October 29, 2002

Velcro mittens and toys help babies grab objects and develop their brains faster

October 22, 2002

Why didn't humans adapt to have good eyesight? (Eye adjusts to keep things in focus, but sometimes …

October 17, 2002

What does spit do for a baseball pitcher's spitball? (makes the ball slippery so it doesn't spin)

October 15, 2002

Why are yawns contagious? (They signal a change in state, so our brain detects them.)

October 10, 2002

Finding out what makes cholera such a virile infection

September 19, 2002

How does a mosquito know that it's biting a human? (Senses carbon dioxide and other chemicals)

September 17, 2002

Why aren't there hurricanes on the West Coast? (Water isn't warm enough to sustain them.)

July 4, 2002

Why don't fire-eaters burn their mouths? (Saliva absorbs heat, use cool-burning fuel)

June 24, 2002

An asteroid impact 200 million years ago may have catapulted dinosaurs into dominance.