Spherical geometry

ConceptMentioned in 1 video

A non-Euclidean geometry where straight lines are great circles on a sphere. On a sphere, there are no parallel lines, and the angles of a triangle sum to more than 180 degrees.

Videos Mentioning Spherical geometry

How One Line in the Oldest Math Text Hinted at Hidden Universes

How One Line in the Oldest Math Text Hinted at Hidden Universes

Veritasium

A non-Euclidean geometry where straight lines are great circles on a sphere. On a sphere, there are no parallel lines, and the angles of a triangle sum to more than 180 degrees.