Why Is It?
Guinea Pigs
Why aren't guinea pigs used as research animals anymore? (They are, but in fewer numbers.)
Popcorn Smell
Why is popcorn so aromatic? (The chemicals responsible are very potent.)
Insect Sweet Tooth
Will insects that are attracted to sugar be attracted to artificial sweeteners?(insects aren't …
Shower Singing
Why do people sing better in the shower than in any other room? (reverberations build up to great …
Mockingbirds
Why do mockingbirds do those little winglifts? (no one knows-- might be to scare insects out of …
Yellow Paper
Why does paper yellow with age? (because it contains lignin, the glue that holds wood fibers …
Recycling Electricity
Can electricity be recycled or reused by connecting ground wire back to electric company instead of …
Dogs and Fear
Can dogs really sense fear? (You betcha, they pick up on your nonverbal cues.)
Radio Signals
Why can't I get my favorite AM radio station at night? (The FCC requires AM stations to cut power at …