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
The Word for World Is Forest by the Vietnam War, but was living in London when she wrote the novel, cut off from the anti-war movement she had been a part of in Oregon. Written in these circumstances, "The Word for World is Forest" became what Le Guin called a "preachment". She stated that writing the book was like "taking dictation from a boss with ulcers". She said that she had wanted to write about forests and dreaming, but that the "boss" had made her write instead about ecological destruction. Charlotte Spivack stated that the book was an "angry work", that ended on a note of