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  1. In meteorology, a low-pressure area, low area or low is a region where the atmospheric pressure is lower than that of surrounding locations. Low-pressure areas are commonly associated with inclement weather (such as cloudy, windy, with possible rain or storms), [1] while high-pressure areas are associated with lighter winds and clear skies. [2]

  2. Tropical Depression Greg. Tropical Depression Greg was a Pacific tropical cyclone that formed at an unusually low latitude in the South China Sea, and became the worst tropical cyclone to affect Malaysia since reliable records began. The last storm of the 1996 Pacific typhoon season, Greg formed on December 24 on the same two monsoon troughs ...

    • December 27, 1996
    • 85 km/h (50 mph)
    • December 24, 1996
    • December 26, 1996
  3. The Köppen climate classification is one of the most widely used climate classification systems. It was first published by German-Russian climatologist Wladimir Köppen (1846–1940) in 1884, [2] [3] with several later modifications by Köppen, notably in 1918 and 1936. [4] [5] Later, German climatologist Rudolf Geiger (1894–1981) introduced ...

  4. The resistivity can be expressed using the SI unit ohm metre (Ω⋅m) — i.e. ohms multiplied by square metres (for the cross-sectional area) then divided by metres (for the length).Both resistance and resistivity describe how difficult it is to make electrical current flow through a material, but unlike resistance, resistivity is an intrinsic property and does not depend on geometric ...

  5. Glossary of mathematical symbols. A mathematical symbol is a figure or a combination of figures that is used to represent a mathematical object, an action on mathematical objects, a relation between mathematical objects, or for structuring the other symbols that occur in a formula. As formulas are entirely constituted with symbols of various ...

  6. en.wikipedia.org › wiki › CelsiusCelsius - Wikipedia

    The degree Celsius (symbol: °C) can refer to a specific point on the Celsius temperature scale or to a difference or range between two temperatures. It is named after the Swedish astronomer Anders Celsius (1701–1744), who proposed the first version of it in 1742. The unit was called centigrade in several languages (from the Latin centum ...

  7. The International System of Units, internationally known by the abbreviation SI (from French Système international d'unités), is the modern form of the metric system and the world's most widely used system of measurement.Coordinated by the International Bureau of Weights and Measures (abbreviated BIPM from French: Bureau international des poids et mesures) it is the only system of ...

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