A small airplane can fly backwards.
75
There are only 14 blimps in the world.
69
The normal static electricty shock that zaps your finger when you touch a doorknob is usually between 10,000 and 30,000 volts!
60
The oil used by jewelers to lubricate clocks and watches costs about $3,000 a gallon.
41
Windmills always turn anti-clockwise. Except for the windmills in Ireland!
184
More than a billion transistors are manufactured every second.
-25
Contrary to popular belief, putting sugar in a car's gas tank will NOT ruin its engine.
25
The ball on top of a flagpole is called a 'truck'.
24