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 directed by Andrew Birkin, in which the voice of actress Charlotte Gainsbourg speaks softly, "Girls can wear jeans and cut their hair short, wear shirts and boots. 'Cause it's OK to be a boy. But for a boy to look like a girl is degrading. 'Cause "you" think that "being" a girl is degrading. But secretly you'd love to know what it's like... Wouldn't you? What it feels like for a girl". Madonna listened to the phrase uttered by Gainsbourg and started writing the song and the melody, resulting in "What It Feels Like for a Girl", a track described