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CYCLONE (Gr. KVKAwv, whirling, from K...

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Originally appearing in Volume V07, Page 686 of the 1911 Encyclopedia Britannica.
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CYCLONE (Gr. KVKAwv, whirling, from KbK)^os, a circle) , an atmospheric See also:system where the pressure is lowest at the centre. The winds in consequence tend to See also:blow towards the centre, but being diverted according to Ferrel's See also:law they rotate spirally inwards at the See also:surface of the See also:earth in a direction contrary to the See also:movement of the hands of a See also:watch in the See also:northern hemisphere, and the See also:reverse in, the See also:southern hemisphere. The whole system has a See also:motion of See also:translation, being usually carried forward with the See also:great See also:wind-drifts like eddies upon a See also:swift stream. Thus their direction of movement over the See also:British Islands is usually from S.W. to N.E., though they may remain stationary or move in other directions. The strength of the winds depends upon the atmospheric gradients.

End of Article: CYCLONE (Gr. KVKAwv, whirling, from KbK)^os, a circle)

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