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2. Radius gauge - Wikipedia

   en.wikipedia.org/wiki/Radius_gauge

   Two types of radius gauges. A radius gauge, also known as a fillet gauge, [1] is a tool used to measure the radius of an object. [2] Radius gauges require a bright light behind the object to be measured. The gauge is placed against the edge to be checked and any light leakage between the blade and edge indicates a mismatch that requires ...

3. Gauge (instrument) - Wikipedia

   en.wikipedia.org/wiki/Gauge_(instrument)

   a tool used to measure the radius of an object. Radius gauges require a bright light behind the object to be measured. The gauge is placed against the edge to be checked and any light leakage between the blade and edge indicates a mismatch that requires correction.

4. Palm (unit) - Wikipedia

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

   The measurement was, however, not always well distinguished from the hand or handful, [30] which became equal to four inches by a 1541 statute of Henry VIII. [ 31 ] [ h ] The palm was excluded from the British Weights and Measures Act of 1824 that established the imperial system and is not a standard US customary unit .

5. 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 ...

6. Compass (drawing tool) - Wikipedia

   en.wikipedia.org/wiki/Compass_(drawing_tool)

   Compasses are usually made of metal or plastic, and consist of two "legs" connected by a hinge which can be adjusted to allow changing of the radius of the circle drawn. . Typically one leg has a spike at its end for anchoring, and the other leg holds a drawing tool, such as a pencil, a short length of just pencil lead or sometimes a

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] It was originally based on the breadth of a human hand.

8. 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 ...

9. List of measuring instruments - Wikipedia

   en.wikipedia.org/wiki/List_of_measuring_instruments

   Established standard objects and events are used as units, and the process of measurement gives a number relating the item under study and the referenced unit of measurement. Measuring instruments, and formal test methods which define the instrument's use, are the means by which these relations of numbers are obtained.