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

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

    Wine was measured with units based on the wine gallon of 231 cubic inches (3.785 L), beer was measured with units based on an ale gallon of 282 cubic inches (4.621 L) and grain was measured with the Winchester measure with a gallon of approximately 268.8 cubic inches (one eighth of a Winchester bushel or 4.405 L). In 1824, these units were ...

  3. United States customary units - Wikipedia

    en.wikipedia.org/wiki/United_States_customary_units

    There are anecdotal objections to the use of metric units in carpentry and the building trades, on the basis that it is easier to remember an integer number of inches plus a fraction than a measurement in millimeters, [9] or that foot-inch measurements are more suitable when distances are frequently divided into halves, thirds, and quarters ...

  4. List of examples of lengths - Wikipedia

    en.wikipedia.org/wiki/List_of_examples_of_lengths

    25.4 μm — 1/1000 inch, commonly referred to as 1 mil in the U.S. and 1 thou in the UK; 30–50 μm — diameter of a minicolumn in the human cortex [citation needed] 50 μm — typical length of Euglena gracilis, a flagellate protist; 50 μm — typical length of a human liver cell, an average-sized body cell

  5. Unit of length - Wikipedia

    en.wikipedia.org/wiki/Unit_of_length

    A ruler, depicting two customary units of length, the centimeter and the inch A unit of length refers to any arbitrarily chosen and accepted reference standard for measurement of length. The most common units in modern use are the metric units , used in every country globally.

  6. Image resolution - Wikipedia

    en.wikipedia.org/wiki/Image_resolution

    An image of N pixels height by M pixels wide can have any resolution less than N lines per picture height, or N TV lines. But when the pixel counts are referred to as "resolution", the convention is to describe the pixel resolution with the set of two positive integer numbers, where the first number is the number of pixel columns (width) and ...

  7. Dots per inch - Wikipedia

    en.wikipedia.org/wiki/Dots_per_inch

    Actual size is approximately 1 ⁄ 4 by 1 ⁄ 4 inch (6 by 6 mm). Individual coloured droplets of ink are visible; this sample is about 150 DPI. Dots per inch (DPI, or dpi [1]) is a measure of spatial printing, video or image scanner dot density, in particular the number of individual dots that can be placed in a line within the span of 1 inch ...

  8. System of units of measurement - Wikipedia

    en.wikipedia.org/wiki/System_of_units_of_measurement

    A US fluid ounce (fl oz), about 29.6 millilitres (ml), is slightly larger than the imperial fluid ounce (about 28.4 ml). However, as there are 16 US fl oz to a US pint and 20 imp fl oz per imperial pint, the imperial pint is about 20% larger. The same is true of quarts, gallons, etc.; six US gallons are a little less than five imperial gallons.

  9. Orders of magnitude (length) - Wikipedia

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

    1.75 m – (5 feet 8 inches) – height of average U.S. male human as of 2002 (source: U.S. CDC as per female above) 2.4 m – wingspan of a mute swan; 2.5 m – height of a sunflower; 2.7 m – length of a leatherback sea turtle, the largest living turtle; 2.72 m – (8 feet 11 inches) – tallest-known human (Robert Wadlow) [31]