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  2. Slide rule scale - Wikipedia

    en.wikipedia.org/wiki/Slide_rule_scale

    Gauge marks are often added to the scales either marking important constants (e.g. π at 3.14159) or useful conversion coefficients (e.g. ρ" at 180*60*60/π or 206.3x10 3 to find sine and tan of small angles [18]).

  3. Human body temperature - Wikipedia

    en.wikipedia.org/wiki/Human_body_temperature

    Subsequently, that mean was widely quoted as "37 °C or 98.4 °F" [41] [42] until editors realized 37 °C is equal to 98.6 °F, not 98.4 °F. The 37 °C value was set by German physician Carl Reinhold August Wunderlich in his 1868 book, [ 43 ] which put temperature charts into widespread clinical use. [ 44 ]

  4. Fever - Wikipedia

    en.wikipedia.org/wiki/Fever

    Hyperpyrexia is an extreme elevation of body temperature which, depending upon the source, is classified as a core body temperature greater than or equal to 40 or 41 °C (104 or 106 °F); the range of hyperpyrexia includes cases considered severe (≥ 40 °C) and extreme (≥ 42 °C).

  5. List of countries by average yearly temperature - Wikipedia

    en.wikipedia.org/wiki/List_of_countries_by...

    This is a list of countries and sovereign states by temperature.. Average yearly temperature is calculated by averaging the minimum and maximum daily temperatures in the country, averaged for the years 1991 – 2020, from World Bank Group, derived from raw gridded climatologies from the Climatic Research Unit.

  6. Solubility table - Wikipedia

    en.wikipedia.org/wiki/Solubility_table

    Substance Formula 0 °C 10 °C 20 °C 30 °C 40 °C 50 °C 60 °C 70 °C 80 °C 90 °C 100 °C Barium acetate: Ba(C 2 H 3 O 2) 2: 58.8: 62: 72: 75: 78.5: 77: 75

  7. Ring size - Wikipedia

    en.wikipedia.org/wiki/Ring_size

    In the United States, Canada, and Mexico, ring sizes are specified using a numerical scale with 1 ⁄ 4 steps, where whole sizes differ by 0.032 inches (0.81 mm) of internal diameter, equivalent to 0.1005 inches (2.55 mm) of internal circumference.

  8. BMW M5 - Wikipedia

    en.wikipedia.org/wiki/BMW_M5

    The BMW M5 is a high-performance variant of the BMW 5 Series marketed under the BMW M sub-brand. It is considered an iconic vehicle in the sports saloon category. [1] [2] The M5 has always been produced in the saloon (sedan, US English) body style, but in some countries the M5 has also been available as an estate (wagon, US English) from 1992 to 1995, from 2006 to 2010, and since 2024.

  9. Platinum - Wikipedia

    en.wikipedia.org/wiki/Platinum

    It reacts vigorously with fluorine at 500 °C (932 °F) to form platinum tetrafluoride. [19] Platinum is insoluble in hydrochloric and nitric acid, but dissolves in hot aqua regia (a mixture of nitric and hydrochloric acids), to form aqueous chloroplatinic acid, H 2 PtCl 6: [20] [21] Pt + 4 HNO 3 + 6 HCl → H 2 PtCl 6 + 4 NO 2 + 4 H 2 O