Edward Craven Walker was inspired to create the lava lamp after admiring an oil and water-based ornament he had spotted on display in the country inn - and in September 1963 he set up a company, now known as Mathmos, to research, develop and most importantly market his invention.Mathmos - named after the lava-like substance which features in the cult film Barbarella - will celebrate its 50th birthday next month with the installation of a gigantic 200-litre lamp at London's Royal Festival Hall and the launch of a limited edition model designed by Mr Craven Walker's widow, Christine Baehr.Homemade Lava Lamp You know the mesmerizing feel of watching a lava lamp, with its large colored bubbles sinking and rising and morphing.
The denser liquid sinks to the bottom, but the lava lamp light heats it up until it expands and becomes less dense, causing it to rise upward.If its cold, it takes ages to get 'blobbing' properly (sometimes an hour or so).You can always send off for replacement innards (different colour combinations etc) depends on the make though... As you may know, Cecil has discussed lava lamps in the past.A boyfriend of mine in highschool had a lava lamp that was ancient. years before they were being sold at the local Walmart again. the blob broke and just changed the color of the water. Although he didn't address problems like this directly, he does darkly hint at the end that things can go wrong.A friend of mine had, and cherished, a lava lamp for years, but eventually, it did stop bubbling. I seem to recall that the instructions included warnings against disturbing the lamp while it was hot and reccommendations for how long to run it at a time, etc.