Thought this might help you remember what you learned all those late nights in the library with your calculator:

The ratio of an igloo's circumference to its diameter: Eskimo Pi

1 millionth of a mouthwash: 1 microscope

The time it takes to sail 220 yards at 1 nautical mile per hour: Knot-furlong

16.5 feet in the Twilight Zone: 1 Rod Serling

Half of a large intestine: 1 semicolon

1000 aches: 1 megahurtz

The basic unit of laryngitis: 1 hoarsepower

The shortest distance between two jokes: A straight line

453.6 graham crackers: 1 pound cake

1 million-million microphones: 1 megaphone

1 million bicycles: 2 megacycles

365.25 days: 1 unicycle

2000 mockingbirds: two kilomockingbirds

10 cards: 1 decacards

1 millionth of a fish: 1 microfiche

1 trillion pins: 1 terrapin

10 rations: 1 decoration

100 rations: 1 C-ration

2 monograms: 1 diagram

8 nickels: 2 paradigms