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The index finger (also referred to as forefinger, [1] first finger, [2] second finger, [3] pointer finger, trigger finger, digitus secundus, digitus II, and many other terms) is the second digit of a human hand. It is located between the thumb and the middle finger. It is usually the most dextrous and sensitive digit of the hand, though not the ...
The first finger is an ambiguous term in the English language due to two competing finger numbering systems that can be used. It might refer to either the thumb or the index finger, depending on the context. The second finger is another ambiguous term in English. It might refer to either the index finger or the middle finger, also dependent on ...
The 2D:4D ratio is calculated by dividing the length of the index finger by the length of the ring finger of the same hand. Other digit ratios are also calculated similarly in the same hand. The digit length is typically measured on the palmar (ventral, "palm-side") hand, from the midpoint of the bottom crease to the tip of the finger. [8]
Some languages have different names for hand and foot digits (English: respectively "finger" and "toe", German: "Finger" and "Zeh", French: "doigt" and "orteil").. In other languages, e.g. Arabic, Russian, Polish, Spanish, Portuguese, Italian, Czech, Tagalog, Turkish, Bulgarian, and Persian, there are no specific one-word names for fingers and toes; these are called "digit of the hand" or ...
Lorentz force: If an electric charge moves across a magnetic field, it experiences a force according to the Lorentz force, with the direction given by the right-hand rule. If the index finger represents the direction of flow of charge (i.e. the current) and the middle finger represents the direction of the magnetic field in space, the direction ...
Bent index finger. This is a gesture that means 'dead' in Chinese culture. [10] Hand of benediction and blessing. The benediction gesture (or benedictio Latina gesture) is a raised right hand with the ring finger and little finger touching the palm, while the middle and index fingers
A Texas man’s finger was severed clean off when the automatic door of a Porsche Panamera closed on his hand after he strapped his grandchild into their car seat, according to a harrowing new ...
Fingerprint identification, known as dactyloscopy, [30] ridgeology, [31] or hand print identification, is the process of comparing two instances of friction ridge skin impressions (see minutiae), from human fingers or toes, or even the palm of the hand or sole of the foot, to determine whether these impressions could have come from the same ...