Fire-Eaters
Why don't fire-eaters burn their mouths? (Saliva absorbs heat, use cool-burning fuel)
Cassette
Predicting Evolution
Predicting antibiotic resistance by forcing bacterial genes to evolve in a test tube
Cracking Whip
A whip crack comes from a loop accelerating down the length of the whip.
Talking Lights
Fluorescent lights can be used to transmit information wirelessly.
Monkey Faces
Six-month-old babies can distinguish individual monkey faces, but 9-month-olds can't.
Staling
Why do crackers get soggy and bread gets crisp when they go stale? (Gluten absorbs or loses …
Dinosaur Meteors
An asteroid impact 200 million years ago may have catapulted dinosaurs into dominance.
GPS Weather Prediction
Global Positioning System (GPS) satellite signals can be used to measure atmospheric conditions.
Roasted Peanuts
Roasting peanuts makes them more likely to trigger peanut allergies.
Malaria-Proof Mosquitoes
Genetically engineered mosquitoes that don't transmit the malaria parasite.