Visual display device

An apparatus for creating a visual display comprising a base, a container disposed over the base for holding light transmitting liquids, and a light source disposed in the base, wherein the improvement comprises:

• a pump mounted to the base and in fluid communication with the container;
• at least two immiscible liquids disposed in the container, the liquids having different densities wherein the volume of each of the at least two immiscible liquids and the shape of the container form at least one visible boundary layer defined by two of the at least two immiscible liquids;
• and
• a control circuit coupled to the pump, the control circuit including a randomizing circuit to provide signals which cause the pump to inject a first one of the at least two immiscible liquids into a second one of the at least two liquids at a controlled pressure and volume to produce visual effects when the first one of the at least two immiscible liquids crosses the at least one visible boundary layer.