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  2. Snellen chart - Wikipedia

    en.wikipedia.org/wiki/Snellen_chart

    The largest letter on an eye chart often represents an acuity of 6/60 (20/200), the value that is considered "legally blind" in the US. Many individuals with high myopia cannot read the large E without glasses, but can read the 6/6 (20/20) line or 6/4.5 (20/15) line with glasses. By contrast, legally blind individuals have a visual acuity of 6/ ...

  3. Visual acuity - Wikipedia

    en.wikipedia.org/wiki/Visual_acuity

    For 6/6 = 1.0 acuity, the size of a letter on the Snellen chart or Landolt C chart is a visual angle of 5 arc minutes (1 arc min = 1/60 of a degree), which is a 43 point font at 20 feet. [10] By the design of a typical optotype (like a Snellen E or a Landolt C), the critical gap that needs to be resolved is 1/5 this value, i.e., 1 arc min.

  4. League (unit) - Wikipedia

    en.wikipedia.org/wiki/League_(unit)

    However, the accepted number of Spanish nautical leagues to a degree varied between 14 1/6 to 16 2/3, so in actual practice the length of a Spanish nautical league was 25,733 feet (4.235 modern nautical miles) to 21,874 feet (3.600 modern nautical miles) respectively.

  5. AOL Mail

    mail.aol.com

    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

  6. Orders of magnitude (length) - Wikipedia

    en.wikipedia.org/wiki/Orders_of_magnitude_(length)

    To help compare different orders of magnitude, this section lists lengths between 103 m and 102 m (1 mm and 1 cm). 1.0 mm – 1/1,000 of a meter; 1.0 mm – 0.03937 inches or 5/127 (exactly) 1.0 mm – side of a square of area 1 mm²; 1.0 mm – diameter of a pinhead; 1.5 mm – average length of a flea [27]

  7. 2024 NFL playoff picture: Who’s sealed their spot and who’s ...

    www.aol.com/2024-nfl-playoff-picture-sealed...

    The Colts’ defeat also meant that the 9-5 Houston Texans will make the playoffs as AFC South winners. Meanwhile, there is a fascinating battle developing for the No. 1 seed in the NFC.

  8. Focal length - Wikipedia

    en.wikipedia.org/wiki/Focal_length

    To focus a distant object (s 1 ≈ ∞), the rear principal plane of the lens must be located a distance s 2 = 50 mm from the film plane, so that it is at the location of the image plane. To focus an object 1 m away (s 1 = 1,000 mm), the lens must be moved 2.6 mm farther away from the film plane, to s 2 = 52.6 mm.

  9. Grooming gang convicted of raping women in Dundee - AOL

    www.aol.com/grooming-gang-convicted-raping-women...

    A Romanian grooming gang has been convicted of raping and sexually abusing ten women in flats across Dundee. The four men and one woman also plied their victims - aged between 16 and 30 - with ...