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World's biggest lava lamp unveiled on South Bank. The biggest lava lamp in the world has gone on display on the South Bank. The 200-litre version was created to mark the 50th anniversary of the company that manufacturers them. Cressida Grainger, the Managing Director of Mathmos, says the super-size lamp will go on display as part of the London Design Festival.
The complete list of ingredients in the Lava-lamp is a company secret, but they are, fundamentally, coloured wax in coloured water. Invented by Edward Craven Walker in 1963, the idea originated from a wartime egg timer, and progressed into the Pop classic, the Astro lamp. The lamps are still produced today by the original company, Mathmos. The lamps work using a bulb in the base of the lamp (underneath the bottle) which heats the contents until the wax becomes molten. It then slowly rises to the top of the lamp, where it cools slightly, and sinks back to the bottom. This process is repeated, creating the unique shapes in the water.