Imperial and Metric Measurements

Imperial and Metric Measurements

There is a unit of measure in the imperial system (on which the U.S. customary system is based) smaller than an inch. It's called a thou, and it is one/one-thousandth of an inch.

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Key Facts In This Video

  • 1

    Three barleycorns equal one inch. (0:34)

  • 2

    One nautical mile equals 6,080 feet, which is much different from a standard mile. (1:06)

  • 3

    A line is the same length as a poppyseed, and four poppyseeds equal one barleycorn. (2:28)

07:59

Key Facts In This Video

  • 1

    A "dash" of an ingredient in cooking is exactly 1/8 of a teaspoon. (0:37)

  • 2

    A "hogshead" is a unit of measurement for wine, which equals 63 gallons. A "butt" equals two hogsheads. (1:55)

  • 3

    An "oxgang" is a unit of measurement used to measure an area of land approximately equivalent to 15 acres. (6:30)

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