Read the following excerpt. Foley artists use props to create sound effects for movies. Their principal job is to immerse viewers in what they see by including the dimension of sound to add to the experience. Foley artists rarely capture the sounds during live taping that are included in the edited version you view. But, just how is this accomplished? How can the tiptoes of a child or the boom of thunder be recreated? A Foley artist sees the opportunity to use an everyday object to capture the sound: swishing a feather duster across a sheet of paper brings thoughts of a ballerina dancing across center stage, and waving a large piece of heavy aluminum evokes thoughts of a thunderstorm! What is a central idea of this paragraph?