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  2. Chalkboard scraping - Wikipedia

    en.wikipedia.org/wiki/Chalkboard_scraping

    In contrast, humans are less averse to the white noise than to scraping. [4] A 1986 study used a tape-recording of a three-pronged garden tool similar to a fork being "grided" across a chalkboard, which roughly reproduces the sound of fingernails on chalkboard. The recording was then manipulated, removing pitches at the extremities and the median.

  3. Finger snapping - Wikipedia

    en.wikipedia.org/wiki/Finger_snapping

    A video of finger snapping Alternative snapping technique. Snapping (or clicking) one's fingers is the act of creating a snapping or clicking sound with one's fingers. . Primarily, this is done by building tension between the thumb and another (middle, index, or ring) finger and then moving the other finger forcefully downward, so it hits the palm of the same hand at a h

  4. List of gestures - Wikipedia

    en.wikipedia.org/wiki/List_of_gestures

    Cossogam involves putting the fingers to the right or left of the shinbone for the first or second aicmi, and across it diagonally or straight for the third or fourth aicmi. One finger is used for the first letter, two for the second, and so on. Sronogam involves the same procedure with the ridge of the nose. Placing the finger straight across ...

  5. Sign of the horns - Wikipedia

    en.wikipedia.org/wiki/Sign_of_the_horns

    The pinky and index fingers are extended but a little more parallel to each other resembling the horns on a demon. Arizona State University Sun Devil fans make a pitchfork sign by extending the index and middle fingers, as well as the pinky. The thumb holds down the ring finger to complete the gesture.

  6. Finger agnosia - Wikipedia

    en.wikipedia.org/wiki/Finger_agnosia

    Finger agnosia, first defined in 1924 by Josef Gerstmann, is the loss in the ability to distinguish, name, or recognize the fingers—not only the patient's own fingers, but also the fingers of others, and drawings and other representations of fingers. [1]

  7. Beckoning sign - Wikipedia

    en.wikipedia.org/wiki/Beckoning_sign

    In the United States, the "beckoning finger" or the "beckoning palm" are the most common gestures implying beckoning. Both are accomplished by up-turning the palm, and extending and retracting either one or two fingers while keeping the rest clenched in a fist or by extending and retracting all of the fingers, all while keeping the palm upturned.

  8. Joint cracking - Wikipedia

    en.wikipedia.org/wiki/Joint_cracking

    Cracking finger joints makes a distinct cracking or popping sound. Joint cracking is the manipulation of joints to produce a sound and related "popping" sensation. It is sometimes performed by physical therapists , chiropractors , and osteopaths [ 1 ] pursuing a variety of outcomes.

  9. List of musical symbols - Wikipedia

    en.wikipedia.org/wiki/List_of_musical_symbols

    Musical symbols are marks and symbols in musical notation that indicate various aspects of how a piece of music is to be performed. There are symbols to communicate information about many musical elements, including pitch, duration, dynamics, or articulation of musical notes; tempo, metre, form (e.g., whether sections are repeated), and details about specific playing techniques (e.g., which ...