A motif is a recurring symbol which takes on a figurative meaning. We see them in books, films, and poems. In fact, almost every text commonly uses the literary device of the motif. A motif can be almost anything: an idea, an object, a concept, a character archetype, the weather, a color, or even a statement.
The Specific Gravity of liquids and solids is defined as a dimensionless unit which is the ratio of density of a material to the density of water at a given temperature, where density is defined as the materialâs mass per unit volume and is measured in kg/m 3.
Specific gravity is a comparison of the density of a given material to the density of water. Water has a density of 1 gram per cubic centimeter (at 4 degrees C). That makes the math really easy. 1.93 g/cc compared to 1 g/cc equals a specific gravity of 1.93 for the clay in the brick. Note that specific gravity has no units associated with it. It's a number only. We've used mass and volume to find density, and then compared the density of our stuff to that of water to find its specific gravity. Piece of cake.