Forensic scientists can determine a person's sex, age, and race by examining a single strand of hair.
101
At room temperature, the average air molecule travels at the speed of a rifle bullet.
55
Stephen Hawking once tried to find potential time travellers by throwing a party and only sending out invitations after the party.
17
The average home creates more pollution than does the average car.
33
In the 1950s, the US government placed beer next to an atomic bomb blast to determine if it was still drinkable. The result: in the event of a nuclear war, beer is safe to drink!
16
One gallon of used motor oil can ruin approximately one million gallons of fresh water!
71