Kleenex tissues were originally used as filters in gas masks.
A small airplane can fly backwards.
The normal static electricty shock that zaps your finger when you touch a doorknob is usually between 10,000 and 30,000 volts!
Any modern jet is capable of breaking the sound barrier.
The oil used by jewelers to lubricate clocks and watches costs about $3,000 a gallon.
A fully loaded supertanker traveling at normal speed takes a least twenty minutes to stop.