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  2. Vernier acuity - Wikipedia

    en.wikipedia.org/wiki/Vernier_acuity

    A subject's vernier (IPA: / ˈ v ɜːr n ɪər /) acuity is the smallest visible offset between the stimuli that can be detected. Because the disalignments are often much smaller than the diameter and spacing of retinal receptors, vernier acuity requires neural processing and "pooling" to detect it. Because vernier acuity exceeds acuity by far ...

  3. Vernier scale - Wikipedia

    en.wikipedia.org/wiki/Vernier_scale

    The use of the vernier scale is shown on a vernier caliper which measures the internal and the external diameters of an object. The vernier scale is constructed so that it is spaced at a constant fraction of the fixed main scale. So for a vernier with a constant of 0.1, each mark on the vernier is spaced 9/10 of those on the main scale.

  4. Hyperacuity - Wikipedia

    en.wikipedia.org/wiki/Hyperacuity

    Ewald Hering's model, published 1899, of how a Vernier acuity stimulus is coded by a receptor array. Receptors marked c signal a different position code along the horizontal direction from either the position a code or the position b code. [1] The sharpness of our senses is defined by the finest detail we can discriminate.

  5. Visual acuity - Wikipedia

    en.wikipedia.org/wiki/Visual_acuity

    The definition of 6/6 is somewhat arbitrary, since human eyes typically have higher acuity, as Tscherning writes, "We have found also that the best eyes have a visual acuity which approaches 2, and we can be almost certain that if, with a good illumination, the acuity is only equal to 1, the eye presents defects sufficiently pronounced to be ...

  6. Pierre Vernier - Wikipedia

    en.wikipedia.org/wiki/Pierre_Vernier

    The main scale reading is the rightmost graduation that is to the left of the zero on the vernier scale. The vernier reading is found by locating the best aligned lines between the two scales. The 0.02 mm engraving indicates the caliper's accuracy and is the "Vernier constant" for this scale. He was born in Ornans, France, in 1580. He was ...

  7. North Carolina parent arrested for choking student inside ...

    www.aol.com/news/north-carolina-parent-arrested...

    A North Carolina father was arrested Monday after allegedly storming into a high school and choking a teenage student in a caught-on-video attack. Quinton Lofton, 43, was charged with felony ...

  8. Perceptual learning - Wikipedia

    en.wikipedia.org/wiki/Perceptual_learning

    In visual Vernier acuity tasks, observers judge whether one line is displaced above or below a second line. Untrained observers are often already very good with this task, but after training, observers' threshold has been shown to improve as much as 6 fold.

  9. Words are overrated. Here’s why we’re addicted to ‘silent ...

    www.aol.com/words-overrated-why-addicted-silent...

    Science & Tech. Shopping. Sports. Weather. Words are overrated. Here’s why we’re addicted to ‘silent reviews’ ...