I Drive a Valence is a book of lyrics by Bill Callahan, the author and singer, whose songs (stories, really) are performed in his own inimitable and completely

An unnamed man studies the Vortex and his surroundings. He begins writing letters to a strange woman he is attracted to at a party. In this epistolary novelette

Valence Shell Electron Pair Repulsion (VSEPR) theory is a simple technique for predicting the geometry of atomic centers in small molecules and molecular ions.