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  2. Mount Wilson Observatory - Wikipedia

    en.wikipedia.org/wiki/Mount_Wilson_Observatory

    The 100-inch (2.5 m) Hooker telescope located at Mount Wilson Observatory, California, was completed in 1917, and was the world's largest telescope until 1949. It is one of the most famous telescopes in observational astronomy of the 20th century.

  3. Percentage - Wikipedia

    en.wikipedia.org/wiki/Percentage

    To calculate a percentage of a percentage, convert both percentages to fractions of 100, or to decimals, and multiply them. For example, 50% of 40% is: ⁠ 50 / 100 ⁠ × ⁠ 40 / 100 ⁠ = 0.50 × 0.40 = 0.20 = ⁠ 20 / 100 ⁠ = 20%. It is not correct to divide by 100 and use the percent sign at the same time; it would literally imply ...

  4. Kingdom Hearts HD 2.5 Remix - Wikipedia

    en.wikipedia.org/wiki/Kingdom_Hearts_HD_2.5_Remix

    Mode (s) Single-player. Kingdom Hearts HD 2.5 Remix[a] is an HD remastered collection of three games in Square Enix 's Kingdom Hearts series: Kingdom Hearts II, Birth by Sleep and Re:coded. A successor to the series' HD 1.5 Remix collection, it was released for the PlayStation 3 in Japan in October 2014 and internationally two months later.

  5. Magnitude (astronomy) - Wikipedia

    en.wikipedia.org/wiki/Magnitude_(astronomy)

    [8] [9] Every interval of one magnitude equates to a variation in brightness of 5 √ 100 or roughly 2.512 times. Consequently, a magnitude 1 star is about 2.5 times brighter than a magnitude 2 star, about 2.5 2 times brighter than a magnitude 3 star, about 2.5 3 times brighter than a magnitude 4 star, and so on.

  6. Academic grading in the United States - Wikipedia

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

    v. t. e. In the United States, academic grading commonly takes on the form of five, six or seven letter grades. Traditionally, the grades are A+, A, A−, B+, B, B−, C+, C, C−, D+, D, D− and F, with A+ being the highest and F being lowest. In some cases, grades can also be numerical. Numeric-to-letter-grade conversions generally vary from ...

  7. Multimedia over Coax Alliance - Wikipedia

    en.wikipedia.org/wiki/Multimedia_over_Coax_Alliance

    The Multimedia over Coax Alliance (MoCA) is an international standards consortium that publishes specifications for networking over coaxial cable.The technology was originally developed to distribute IP television in homes using existing cabling, but is now used as a general-purpose Ethernet link where it is inconvenient or undesirable to replace existing coaxial cable with optical fiber or ...

  8. Particulates - Wikipedia

    en.wikipedia.org/wiki/Particulates

    Airborne particulate matter is a Group 1 carcinogen. [ 6 ] Particulates are the most harmful form (other than ultra-fines) of air pollution [ 7 ] as they can penetrate deep into the lungs and brain from blood streams, causing health problems such as heart disease, lung disease, cancer and preterm birth. [ 8 ]

  9. 97.5th percentile point - Wikipedia

    en.wikipedia.org/wiki/97.5th_percentile_point

    97.5th percentile point. Number useful in statistics for analyzing a normal curve. 95% of the area under the normal distribution lies within 1.96 standard deviations away from the mean. In probability and statistics, the 97.5th percentile point of the standard normal distribution is a number commonly used for statistical calculations. The ...