 Caselli started a journal called "The Recreation" in 1851 which was about the science of physics written in laymen's terms.Pantèlègraph is a portmanteau from "pantograph", a tool that copies words and drawings, plus "telegraph", an electromechanical system that sends messages through a wire over long distances.While Caselli was teaching physics at the University of Florence he devoted much of his research in the technology of telegraphic transmission of images as well as simple words.