Copper door knobs are self-disinfecting.

Montpelier, Vermont, is the only U.S. capital without a McDonald's.

Cotton candy was invented by a dentist.

Apple seeds contain cyanide.

Marie Curie is the only person to earn a Nobel prize in two different sciences.

Mulan has the highest kill-count of any Disney character.

Fingernails don't grow after you die.

A cubic inch of human bone can bear the weight of five standard pickup trucks.

The English word with the most definitions is "set."

A frigate bird can sleep while it flies.