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  2. Orders of magnitude (length) - Wikipedia

    en.wikipedia.org/wiki/Orders_of_magnitude_(length)

    3.690 Mm – length of the Volga river, longest in Europe; 4.000 Mm – length of the Kalahari Desert; 4.350 Mm – length of the Yellow River; 4.600 Mm – width of the Mediterranean Sea; 4.800 Mm – length of the Sahara; 4.800 Mm – widest width of Atlantic Ocean (U.S.-Northern Africa) 5.100 Mm – distance from Dublin to New York as the ...

  3. Foot (unit) - Wikipedia

    en.wikipedia.org/wiki/Foot_(unit)

    Under the Harappan linear measures, Indus cities during the Bronze Age used a foot of 13.2 inches (335 mm) and a cubit of 20.8 inches (528 mm). [11] The Egyptian equivalent of the foot—a measure of four palms or 16 digits—was known as the djeser and has been reconstructed as about 30 cm (11.8 in).

  4. Shoe size - Wikipedia

    en.wikipedia.org/wiki/Shoe_size

    The last is typically longer than the foot heel to toe length by 43 cm (13.33 mm) to 5 ⁄ 3 cm (16.67 mm), or 2 to 2 + 1 ⁄ 2 Paris points, so to determine the shoe size based on actual foot length one must add 2 Paris points. Because a Paris point is 2 ⁄ 3 of a centimetre, a centimetre is 3 ⁄ 2 Paris points, and the formula is as ...

  5. Comparison of the imperial and US customary measurement ...

    en.wikipedia.org/wiki/Comparison_of_the_imperial...

    The US survey foot is defined so that 1 metre is exactly 39.37 inches, making the international foot of 0.3048 metres exactly two parts per million shorter. This is a difference of just over 3.2 mm, or a little more than one-eighth of an inch per mile.

  6. United States customary units - Wikipedia

    en.wikipedia.org/wiki/United_States_customary_units

    Thickness of aluminum foil is measured in mils (1 ⁄ 1000 inch, or 0.0254 mm) in the United States. Cross-sectional area of electrical wire is measured in circular mils in the U.S. and Canada, one circular mil (cmil) being equal to 5.067 × 10 −4 mm 2 (or 7.854 × 10 −7 in 2). Since this is so small, actual wire is commonly measured in ...

  7. English units - Wikipedia

    en.wikipedia.org/wiki/English_units

    3 digits = 2 + 1 ⁄ 4 inches = 1 ⁄ 16 yard Palm: 76.2 mm: 3 inches Hand: 101.6 mm: 4 inches Shaftment: 165 mm or 152 mm: Width of the hand and outstretched thumb, 6 + 1 ⁄ 2 inches before 12th century, 6 thereafter [14] Link: 201.2 mm: 7.92 inches or one 100th of a chain. [15] (A modern Indian surveyor's chain has 200 mm links.) Span: 228.6 ...

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    mail.aol.com

    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

  9. Orders of magnitude (area) - Wikipedia

    en.wikipedia.org/wiki/Orders_of_magnitude_(area)

    10 −4: 1 square centimetre (cm 2) 290 mm 2: Area of one side of a U.S. penny [19] [20] 500 mm 2: Area of a typical postage stamp: 10 −3 1,100 mm 2: Area of a human retina [21] 4,600 mm 2: Area of the face of a credit card [22] 4,800 mm 2: Largest side of a cigarette box 10 −2: 1 square decimetre (dm 2) 10,000 mm 2: Index card (3 × 5 ...