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  2. Ancient Egyptian units of measurement - Wikipedia

    en.wikipedia.org/wiki/Ancient_Egyptian_units_of...

    The rulers are also divided into hands [5] so that for example one foot is given as three hands and fifteen fingers and also as four palms and sixteen fingers. [6] [3] [7] [8] [9] [5] Cubit rod from the Turin Museum. Surveying and itinerant measurement were undertaken using rods, poles, and knotted cords of rope.

  3. Smith chart - Wikipedia

    en.wikipedia.org/wiki/Smith_chart

    Using the Smith chart, the normalised impedance may be obtained with appreciable accuracy by plotting the point representing the reflection coefficient treating the Smith chart as a polar diagram and then reading its value directly using the characteristic Smith chart scaling. This technique is a graphical alternative to substituting the values ...

  4. Hand geometry - Wikipedia

    en.wikipedia.org/wiki/Hand_geometry

    A hand geometry reading device with pegs to control the placement of the hand. Angled mirror on the left reflects the side view image of the hand to the camera. A CCD camera is beneath the keypad to take the top view image of the hand and the mirror image. [2] Hand geometry is a biometric that identifies users from the shape of their hands ...

  5. Finger (unit) - Wikipedia

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

    In medicine and related disciplines (anatomy, radiology, etc.) the fingerbreadth (literally the width of a finger) is an informal but widely used unit of measure. [3] [4] In the measurement of distilled spirits, a finger of whiskey refers to the amount of whiskey that would fill a glass to the level of one finger wrapped around the glass at the ...

  6. Cubit - Wikipedia

    en.wikipedia.org/wiki/Cubit

    Epiphanius of Salamis, in his treatise On Weights and Measures, describes how it was customary, in his day, to take the measurement of the biblical cubit: "The cubit is a measure, but it is taken from the measure of the forearm. For the part from the elbow to the wrist and the palm of the hand is called the cubit, the middle finger of the cubit ...

  7. Hand (unit) - Wikipedia

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

    The hand is a non-SI unit of measurement of length standardized to 4 in (101.6 mm). It is used to measure the height of horses in many English-speaking countries, including Australia , [ 1 ] Canada , Ireland , the United Kingdom , and the United States . [ 2 ]

  8. Ring size - Wikipedia

    en.wikipedia.org/wiki/Ring_size

    Ring sizes can be measured physically by a paper, plastic, or metal ring sizer (as a gauge) or by measuring the inner diameter of a ring that already fits. Ring sticks are tools used to measure the inner size of a ring, and are typically made from plastic, delrin, wood, aluminium, or of multiple materials. Digital ring sticks can be used for ...

  9. Slide rule - Wikipedia

    en.wikipedia.org/wiki/Slide_rule

    Slide charthand-held device with moving parts, commonly paper, commonly printed for reference or calculation Timeline of computing Vernier scale – Auxiliary scale of a measurement device, used to increase precision