Science News Archive - August 25, 2004
Just one billionth of a gram of this substance has the potential for causing an irritating skin rash in some individuals, though 100 times that amount is the average for most people.
Word of the Day
- One of a pair of round metal cymbals attached to the fingers and struck together for rhythm and percussion in belly dancing.
The word 'zill' comes from a Turkish word meaning "cymbals".