Pound: (symbol: lb) is a unit of weight (or mass) used in the United States customary system and the British imperial system.
Interesting Facts:
Interesting Facts:
Interesting Facts:
- The pound has origins in the Roman unit libra (where it took its symbol lb).
- The pound was officially defined in 1959 as 0.45359237 kilograms in agreement between the U.S. and Commonwealth countries.
- Pound Sterling is the name of the U.K.'s currency, which derives its name from the fact that back in arround 800 year 240 silver coings, called "sterlings", were minted from a pound of silver.
Interesting Facts:
- A milligram is about the weight of a small grain of sand
- A typical cup of coffee contains 80–120 mg of caffeine
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