The Unconscious is structured like a Language. Lacan borrows some ideas of linguistics that Freud did not have access to. As we have seen, Saussure showed that a sign is not necessarily something that connects a word or name to a thing, but is in fact something which connects a sound or image to a concept. The sound or image is called a signifier.
The rift sawn rip cuts are perpendicular to the center of the log. In woodworking, a rip-cut is to sever or divide a piece of wood parallel to the grain. The other typical type of cut is a cross-cut, a cut perpendicular to the grain. Unlike cross-cutting, which shears the wood fibers, a rip saw works more like a series of chisels, lifting off small splinters of wood.
You will need to trim most mosaic tiles and tile sheets to fit the perimeter of the room. You can cut the sheets, whether paper-faced or mesh-mounted, with a pair of scissors between the tiles. You can cut the tiles on the sheets with tile nippers designed for the type of tile being installed or with a tile wet saw by sliding the entire sheet through the saw as if it were a larger tile.