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  2. Magnification - Wikipedia

    en.wikipedia.org/wiki/Magnification

    Stepwise magnification by 6% per frame into a 39-megapixel image. In the final frame, at about 170x, an image of a bystander is seen reflected in the man's cornea. Magnification is the process of enlarging the apparent size, not physical size, of something. This enlargement is quantified by a size ratio called optical magnification.

  3. Academic grading in the United States - Wikipedia

    en.wikipedia.org/wiki/Academic_grading_in_the...

    The overall grade for the class is then typically weighted so that the final grade represents a stated proportion of different types of work. For example, daily homework may be counted as 50% of the final grade, chapter quizzes may count for 20%, the comprehensive final exam may count for 20%, [1] and a major project may count for the remaining ...

  4. Loupe - Wikipedia

    en.wikipedia.org/wiki/Loupe

    A typical magnification for use in dentistry is 2.5×, but dental loupes can be anywhere in the range from 2× to 8×. [14] Optimal magnification is a function of the type of work the doctor does - namely, how much detail he or she needs to see, taking into consideration that when magnification increases, the field of view decreases.

  5. Visual impairment - Wikipedia

    en.wikipedia.org/wiki/Visual_impairment

    Visual or vision impairment (VI or VIP) is the partial or total inability of visual perception.In the absence of treatment such as corrective eyewear, assistive devices, and medical treatment, visual impairment may cause the individual difficulties with normal daily tasks, including reading and walking. [6]

  6. List of state achievement tests in the United States - Wikipedia

    en.wikipedia.org/wiki/List_of_state_achievement...

    Yes, translation is available for all Regents exams except for language exams. For English exams, a glossary is available, while foreign language exams have none. [30] North Carolina: North Carolina Department of Public Instruction: North Carolina End of Grade Tests (Grades 3-8) End of Course Tests (Grades 9-12) EOGs EOCs North Dakota

  7. None of the Apollo astronauts reported seeing any specific human-made object from the Moon, and even Earth-orbiting astronauts can see it only with magnification. City lights, however, are easily visible on the night side of Earth from orbit.

  8. Optical microscope - Wikipedia

    en.wikipedia.org/wiki/Optical_microscope

    A 40x magnification image of cells in a medical smear test taken through an optical microscope using a wet mount technique, placing the specimen on a glass slide and mixing with a salt solution. Optical microscopy is used extensively in microelectronics, nanophysics, biotechnology, pharmaceutic research, mineralogy and microbiology. [28]

  9. Slit lamp - Wikipedia

    en.wikipedia.org/wiki/Slit_lamp

    Eye examination with the aid of a slit lamp. Side view of a slit lamp machine. Cataract in human eye: magnified view seen on examination with the slit lamp. In ophthalmology and optometry, a slit lamp is an instrument consisting of a high-intensity light source that can be focused to shine a thin sheet of light into the eye.