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  2. Graduation (scale) - Wikipedia

    en.wikipedia.org/wiki/Graduation_(scale)

    A ruler with two linear scales: the metric and imperial.It includes shorter minor graduations and longer major graduations. A graduation is a marking used to indicate points on a visual scale, which can be present on a container, a measuring device, or the axes of a line plot, usually one of many along a line or curve, each in the form of short line segments perpendicular to the line or curve.

  3. Dialing scales - Wikipedia

    en.wikipedia.org/wiki/Dialing_scales

    They were proposed by Samuel Foster in 1638, and produced by George Serle and Anthony Thompson in 1658 on a ruler. There are two scales: the latitude scale and the hour scale. They can be used to draw all gnomonic dials – and reverse engineer existing dials to discover their original intended location. [1]

  4. Ruler - Wikipedia

    en.wikipedia.org/wiki/Ruler

    A variety of rulers A carpenter's rule Retractable flexible rule or tape measure A closeup of a steel ruler A ruler in combination with a letter scale. A ruler, sometimes called a rule, scale or a line gauge or metre/meter stick, is an instrument used to make length measurements, whereby a length is read from a series of markings called "rules" along an edge of the device. [1]

  5. Hatch mark - Wikipedia

    en.wikipedia.org/wiki/Hatch_mark

    Unit and value marks — as on a ruler or number line; Congruence notation in geometry — as on a geometric figure; Graphed points — as on a graph; Hatch marks are frequently used as an abbreviation of some common units of measurement. In regard to distance, a single hatch mark indicates feet, and two hatch marks indicate inches.

  6. Scale ruler - Wikipedia

    en.wikipedia.org/wiki/Scale_ruler

    A scale ruler is a tool for measuring lengths and transferring measurements at a fixed ratio of length; two common examples are an architect's scale and engineer's scale.In scientific and engineering terminology, a device to measure linear distance and create proportional linear measurements is called a scale.

  7. Tape measure - Wikipedia

    en.wikipedia.org/wiki/Tape_measure

    Tape measure with 16 and 19.2 inch marks Most tapes sold in the United States are inches - and feet -based. Some tapes have additional marks in the shape of small black diamonds, appearing every 19.2 inches (488 mm), used to mark out equal spacing for joists (five joists or trusses per US standard 8-foot (2,438 mm) length of building material).

  8. Slide rule scale - Wikipedia

    en.wikipedia.org/wiki/Slide_rule_scale

    Keuffel and Esser 7" slide rule (5" scale, 1954) [1] A slide rule scale is a line with graduated markings inscribed along the length of a slide rule used for mathematical calculations. The earliest such device had a single logarithmic scale for performing multiplication and division, but soon an improved technique was developed which involved ...

  9. Sparse ruler - Wikipedia

    en.wikipedia.org/wiki/Sparse_ruler

    Rulers that can fully measure up to a longer distance than any shorter ruler with the same number of marks are highlighted. ... 5, 9, 12, 16, 32, 38, 42, 55, 56, 57 ...