Shamelessly stole this from another newsgroup:
Handy Engineering Conversions:
Ratio of an igloo's circumference to its diameter: Eskimo Pi
2000 pounds of Chinese soup: Won ton1 millionth of a mouthwash: 1 microscope
Time between slipping on a peel and smacking the pavement: 1 bananosecond
Weight an evangelist carries with God: 1 billigram
365.25 days of drinking low-calorie beer because it's less filling: 1 lite year16.5 feet in the Twilight Zone: 1 Rod Serling
Half of a large intestine: 1 semicolon
1,000,000 aches: 1 megahurtzBasic unit of laryngitis: 1 hoarsepower
453.6 graham crackers: 1 pound cake1 million-million microphones: 1 megaphone
1 million bicycles: 2 megacycles365.25 days: 1 unicycle
2000 mockingbirds: two kilomockingbirds (work on it....)10 cards: 1 decacards
1 kilogram of falling figs: 1 Fig Newton1000 grams of wet socks: 1 literhosen
1 millionth of a fish: 1 microfiche1 trillion pins: 1 terrapin
10 rations: 1 decoration100 rations: 1 C-ration
2 monograms: 1 diagram8 nickels: 2 paradigms
2.4 statute miles of intravenous surgical tubing at Yale University Hospital: 1 I.V. League.