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A world map showing areas with Köppen B classification (dry climates). The temperatures of the hot variants (BWh, BSh) of these climates have the potential to exceed 50 C (122 F) during the hottest seasons. According to the World Meteorological Organization (WMO), the highest temperature ever recorded was 56.7 C (134.1 F) on 10 July 1913 in Furnace Creek (Greenland Ranch), California, United ...
Cloud seeding. Cloud seeding can be done by ground generators, planes, or pigeons. This image explaining cloud seeding shows a substance – either silver iodide or dry ice – being dumped onto the cloud, which then becomes a rain shower. The process shown in the upper-right is what is happening in the cloud and the process of condensation ...
A sigmoid function is any mathematical function whose graph has a characteristic S-shaped or sigmoid curve . A common example of a sigmoid function is the logistic function shown in the first figure and defined by the formula: [1] Other standard sigmoid functions are given in the Examples section. In some fields, most notably in the context of ...
In physical geography, tundra ( / ˈtʌndrə, ˈtʊn -/) is a type of biome where tree growth is hindered by frigid temperatures and short growing seasons. The term is a Russian word adapted from Sámi languages. [2] There are three regions and associated types of tundra: Arctic tundra, [3] alpine tundra, [3] and Antarctic tundra.
North Carolina ( / ˌkærəˈlaɪnə / ⓘ KARR-ə-LY-nə) is a state in the Southeastern region of the United States. It is bordered by Virginia to the north, the Atlantic Ocean to the east, South Carolina to the south, Georgia to the southwest, and Tennessee to the west. The state is the 28th-largest and 9th-most populous of the United States.
