Normal (geometry) Normal (geometry) In geometry, a normal is an object such as a line or vector that is perpendicular to a given object. For example, in two dimensions, the normal line to a curve at a given point is the line perpendicular to the tangent line to the curve at the point. In three dimensions, a surface normal, or simply normal, to a surface at a point "P" is a vector that is perpendicular to the tangent plane to that surface at "P". The word "normal" is also used as an adjective: a line normal to a plane, the normal component
What It Feels Like for a Girl mythology, according to Ritchie. David Bianculli from the "New York Daily News" felt that "Madonna has always kept her videos and images at least as fresh as her music. 'What It Feels Like for a Girl', though, is a bad attempt to chase attention by promising controversy". Similarly, "Billboard"s Carla Hay concluded that the video did not live up to its hype. George Lang from "The Oklahoman", called it as the singer's worst clip and criticized Ritchie's directing abilities; "he has great visual sense, but his work often is lacking depth. Both his asset and his debit were in ample