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  2. Shaku (unit) - Wikipedia

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

    Another shaku variant was used for measuring cloth, which measured 125 ⁄ 330 meters (37.9 centimeters or 14.9 inches), and was known as the "whale shaku " (鯨尺, kujirajaku), as baleen (whale whiskers) were used as cloth rulers. To distinguish the two variants of shaku, the general unit was known as the "metal shaku " (金尺/曲尺 ...

  3. 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]

  4. Dots per inch - Wikipedia

    en.wikipedia.org/wiki/Dots_per_inch

    As it is, the Macintosh 128K featured a screen measuring 512 pixels in width by 342 pixels in height, and this corresponded to the width of standard office paper (512 px ÷ 72 px/in ≈ 7.1 in, with a 0.7 in margin down each side when assuming 8 + 1 ⁄ 2 in × 11 in North American paper size; in the rest of the world, it is 210 mm × 297 mm ...

  5. List of measuring instruments - Wikipedia

    en.wikipedia.org/wiki/List_of_measuring_instruments

    ruler: for measuring length saccharometer: amount of sugar in a solution seismometer: seismic waves (for example, earthquakes) sextant: location on Earth's surface (used in naval navigation) spectrometer: properties of light spectrophotometer: intensity of light as a function of wavelength speedometer: speed, velocity of a vehicle spirometer ...

  6. Length measurement - Wikipedia

    en.wikipedia.org/wiki/Length_measurement

    The ruler the simplest kind of length measurement tool: lengths are defined by printed marks or engravings on a stick. The metre was initially defined using a ruler before more accurate methods became available. Gauge blocks are a common method for precise measurement or calibration of measurement tools.

  7. Tape measure - Wikipedia

    en.wikipedia.org/wiki/Tape_measure

    For example, in some Walmarts there are Hyper Tough brand tapes available in both US customary units and Metric units. Unlike US rulers, of which an overwhelming majority contain both centimeter and inch scales, tape measures are longer and thus traditionally have had scales in both inches and feet & inches. So, the inclusion of a metric scale ...

  8. List of scale model sizes - Wikipedia

    en.wikipedia.org/wiki/List_of_scale_model_sizes

    Ratio Inches per foot Millimetres per foot Common use Comments 1:20000: 0.015 mm: Sci-fi: Arii produced injection-molded kits in this scale of the Zentradi spacecraft from the science fiction anime series Macross.

  9. Metre-stick - Wikipedia

    en.wikipedia.org/wiki/Metre-stick

    A metre-stick, metrestick (or meter-stick and meterstick as alternative spellings); [1] or yardstick [2] is either a straightedge or foldable ruler used to measure length, and is especially common in the construction industry. They are often made of wood or plastic, and often have metal or plastic joints so that they can be folded together.