翻訳と辞書
Words near each other
・ Circle K
・ Circle K International
・ Circle K Sunkus
・ Circle L engine
・ Circle Lake
・ Circle Limit III
・ Circle Line
・ Circle line (London Underground)
・ Circle Line Downtown
・ Circle line party
・ Circle Line Sightseeing Cruises
・ Circle Magazine
・ Circle Mirror Transformation
・ Circle MRT Line
・ Circle Oaks, California
Circle of a sphere
・ Circle of Animals/Zodiac Heads
・ Circle of antisimilitude
・ Circle of confusion
・ Circle of Courage
・ Circle of Danger
・ Circle of Dead Children
・ Circle of Death
・ Circle of Death (album)
・ Circle of Death (sporting)
・ Circle of Deceit
・ Circle of Deceit (1993 film)
・ Circle of doom
・ Circle of Dust
・ Circle of Dust (album)


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Circle of a sphere : ウィキペディア英語版
Circle of a sphere

A circle of a sphere is a circle that lies on a sphere. Such a circle can be formed as the intersection of a sphere and a plane, or of two spheres. A circle on a sphere whose plane passes through the center of the sphere is called a great circle; otherwise it is a small circle. Circles of a sphere have radius less than or equal to the sphere radius, with equality when the circle is a great circle.
==On the earth==
In the geographic coordinate system on a globe, the parallels of latitude are such circles, with the Equator the only great circle. By contrast, all meridians of longitude, paired with their opposite meridian in the other hemisphere, form great circles.

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「Circle of a sphere」の詳細全文を読む



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