Lava lamp

lava lamp is a decorative lamp, invented in 1963 by entrepreneur Edward Craven Walker, the founder of the lighting  Mathmos. The lamp consists of a bolus of a special coloured wax mixture inside a vessel, the remainder of which contains clear or translucent liquid. The vessel is placed on a box containing an incandescent light bulb whose heat causes temporary reductions in the density of the wax and surface tension of the liquid. As the warmed wax rises through the surrounding liquid, it cools, loses its buoyancy, and falls back to the bottom of the vessel in a cycle that is visually suggestive of pāhoehoe lava, hence the name. The lamps are designed in a variety of styles and colours.

Last Updated on 2 years by pinc