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.
chemical analysis: Specific gravity measurements. ...that is defined as the ratio of the density of the analyte to the density of water at a specified temperature. The procedure used to measure specific gravity often employs an instrument called a hydrometer, which is a glass tube that is sealed at both ends and can float when placed in a liquid.