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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.
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 ...
The hand is a non-SI unit of length equal to exactly 4 inches (101.6 mm). It is normally used to measure the height of horses in some English-speaking countries, including Australia, [4] Canada, Ireland, the United Kingdom, and the United States.
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 ...
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 ...
Where the range is known the angle will give the size, where the size is known then the range is given. When out in the field angle can be measured approximately by using calibrated optics or roughly using one's fingers and hands. With an outstretched arm one finger is approximately 30 mrad wide, a fist 150 mrad and a spread hand 300 mrad.
The radius is named so because the radius (bone) acts like the radius (of a circle). It rotates around the ulna and the far end (where it joins to the bones of the hand), known as the styloid process of the radius, is [clarification needed] the distance from the ulna (center of the circle) to the edge of the radius (the circle). The ulna acts ...
The palm was not a major unit in ancient Mesopotamia but appeared in ancient Israel as the tefah, [7] tepah, [8] or topah [8] (Hebrew: טפח, lit. "a spread"). [9] Scholars were long uncertain as to whether this was reckoned using the Egyptian or Babylonian cubit, [7] but now believe it to have approximated the Egyptian "Greek cubit", giving a value for the palm of about 74 mm or 2.9 in. [8]