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In sciences such as physics, geography, astronomy, meteorology and statistics, the term scale or spatial scale is used for describing or classifying with large approximation the extent or size of a length, distance, or area studied or described. For instance, in physics an object or phenomenon can be called microscopic if too small to be visible. In climatology, a micro-climate is a climate which might occur in a mountain, valley, or near a lake shore, whereas in statistics a megatrend is a political, social, economical, environmental, or technological trend which involves the whole planet or is supposed to last a very large amount of time. In physics, the concept of scale is closely related to the more accurate concept of order of magnitude. These divisions are somewhat arbitrary; where, on this table, ''mega-'' is assigned global scope, it may only apply continentally or even regionally in other contexts. The interpretations of ''meso-'' and ''macro-'' must then be adjusted accordingly. == See also == * Astronomical units of length * Cosmic distance ladder * Orders of magnitude (length) 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Scale (physics)」の詳細全文を読む スポンサード リンク
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