← all shorts

Concept

Hairy Ball Theorem

The Hairy Ball Theorem is a result in algebraic topology stating that any continuous tangent vector field on an even-dimensional sphere must have at least one point where the vector vanishes. This means it is impossible to comb the hair on a spherical object without creating a cowlick or bald spot. The theorem has applications in meteorology, computer graphics, and other fields.

Mentioned in 1 article