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  2. 1951 USAF resolution test chart - Wikipedia

    en.wikipedia.org/.../1951_USAF_resolution_test_chart

    A 1951 USAF resolution test chart is a microscopic optical resolution test device originally defined by the U.S. Air Force MIL-STD-150A standard of 1951. The design provides numerous small target shapes exhibiting a stepped assortment of precise spatial frequency specimens. It is widely used in optical engineering laboratory work to analyze and ...

  3. Yandel 150 - Wikipedia

    en.wikipedia.org/wiki/Yandel_150

    Yandel 150. " Yandel 150 " is a reggaeton song by Puerto Rican singer Yandel and Colombian singer Feid, from the former's seventh studio album, Resistencia (2023). It was released on December 20, 2022, under Y Entertainment and Sony Music Latin. It was written by Feid, Yandel, Fantakuko, Rolo, Jowan and Wain, as well as produced by the latter ...

  4. Snellen chart - Wikipedia

    en.wikipedia.org/wiki/Snellen_chart

    Snellen chart. Purpose. Snellen chart is used to estimate visual acuity (last three rows are 20/15, 20/13 and 20/10) A Snellen chart is an eye chart that can be used to measure visual acuity. Snellen charts are named after the Dutch ophthalmologist Herman Snellen who developed the chart in 1862 as a measurement tool for the acuity formula ...

  5. Denver Developmental Screening Tests - Wikipedia

    en.wikipedia.org/wiki/Denver_Developmental...

    The Denver Developmental Screening Test (DDST) was introduced in 1967 to identify young children, up to age six, with developmental problems. A revised version, Denver II, was released in 1992 to provide needed improvements. These screening tests provide information about a range of ages during which normally developing children acquire certain ...

  6. Reference Daily Intake - Wikipedia

    en.wikipedia.org/wiki/Reference_Daily_Intake

    Reference Daily Intake. In the U.S. and Canada, the Reference Daily Intake (RDI) is used in nutrition labeling on food and dietary supplement products to indicate the daily intake level of a nutrient that is considered to be sufficient to meet the requirements of 97–98% of healthy individuals in every demographic in the United States.

  7. IQ classification - Wikipedia

    en.wikipedia.org/wiki/IQ_classification

    IQ classification. Score distribution chart for sample of 905 children tested on 1916 Stanford–Binet Test. IQ classification is the practice of categorizing human intelligence, as measured by intelligence quotient (IQ) tests, into categories such as "superior" and "average". [1][2][3][4] In the current IQ scoring method, an IQ score of 100 ...

  8. LogMAR chart - Wikipedia

    en.wikipedia.org/wiki/LogMAR_chart

    The chart was designed by Ian Bailey [5] and Jan E. Lovie-Kitchin at the National Vision Research Institute of Australia. [1] [3] They described their motivation for designing the LogMAR chart as follows: "We have designed a series of near vision charts in which the typeface, size progression, size range, number of words per row and spacings were chosen in an endeavour to achieve a ...

  9. Billboard Year-End Hot 100 singles of 1972 - Wikipedia

    en.wikipedia.org/wiki/Billboard_Year-End_Hot_100...

    "The First Time Ever I Saw Your Face" by Roberta Flack was the number one song of 1972. Al Green had three songs on the Year-End Hot 100, the most of any artist in 1972.. This is a list of Billboard magazine's Top Hot 100 songs of 1972. [1]