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Specialty Expressions: HAIRY BALL

ExpressionsDomainDefinition
Hairy ballComputingHairy ball A result in topology stating that a continuous vector field on a sphere is always zero somewhere. The name comes from the fact that you can't flatten all the hair on a hairy ball, like a tennis ball, there will always be a tuft somewhere (where the tangential projection of the hair is zero). An immediate corollary to this theorem is that for any continuous map f of the sphere into itself there is a point x such that f (x)=x or f (x) is the antipode of x. Another corollary is that at any moment somewhere on the Earth there is no wind. (2002-01-07). Source: The Free On-line Dictionary of Computing..

Source: compiled by the editor from various references; see credits.

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Topics by Level of Interest: HAIRY BALL

Topics sorted by level of InterestLevel (1=low, 600=high)   Topics sorted AlphabeticallyLevel (1=low, 600=high)
Hairy ball theorem10   Hairy ball theorem10

Source: the editor, created by/for EVE to gauge likely levels of human interest in linguistically triggered topics (compiled across various sources, such as Wikipedia and specialty expression glosses).

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