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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.
A lava lamp (or Astro lamp) is a decorative novelty item, invented by British accountant Edward Craven Walker, the founder of Mathmos, in 1963.hen heated, the wax mixture becomes less dense than the water, because the wax expands more than water when both are heated. p. 1, lines 40 & 45 It also becomes fluid, and blobs of wax ascend to the top of the device where they cool (which increases their density relative to that of the water) and then they descend.