Figure 6: Color schlieren imaging of buoyant convection around an ice cube melting in water.

Figure 7: Convection plumes strengthening with time during growth of a KDP crystal from its aqueous solution.

Additional color schlieren images are presented in Figures 5-7. In Figure 5, interferometry, laser schlieren and color schlieren are directly compared for a Rayleigh-Benard experiment wherein buoyancy-driven convection in a fluid-filled horizontal differentially heated cavity is generated. Figure 6 shows convection pattern in a beaker containing water when an ice cube, suddenly placed on its surface, starts to melt. In Figure 7, convection plumes around a crystal growing from its aqueous, supersaturated solution are imaged.