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.
The usage of specific gravity notation is useful in the metric system, where the density of water is typically taken as 1000 kilograms per meter cubed. Multiplying the specific gravity of a material by 1000 yields the density of the material in kilograms per meter cubed. Dividing 1000 by itself yields the specific gravity of water, which is one. The larger the specific density of a material, the more dense the material is than water. Specific density can be used to determine whether solids of different materials float or sink in water. If the material specific gravity is greater than one, it sinks in water.