Lava Lamps
The glowing bottle of slow-drifting wax blobs that anchored every '90s bedroom and dorm-room shelf. Invented in 1963, it lay dormant for years before a wave of retro nostalgia made it the mood-lighting must-have of the decade all over again.
The lava lamp was invented in 1963 by Edward Craven Walker, a British entrepreneur who got the idea from a homemade liquid-filled egg timer he spotted in a pub. He called it the "Astro" lamp and made it through his company, Crestworth, in Poole, Dorset. The science is a warm secret: a blob of specially formulated wax sits in a colored liquid, and the bulb's heat makes it rise, cool, and sink in an endless, hypnotic drift.
It became an icon of 1960s and '70s psychedelia — selling millions a year at its peak — and then it crashed. By the 1980s the lamp was badly out of fashion and sales had collapsed. Then the '90s arrived and, with them, a full-blown retro revival. Fueled by '60s-and-'70s nostalgia and turbocharged by the Austin Powers films, the lava lamp became a must-have again — the default cool-glow accessory of college dorm rooms and teenage bedrooms across the decade. The UK successor company Mathmos sold some 800,000 lamps in the year 2000 alone.
Sold in the U.S. under the Lava Lite brand and in Britain by Mathmos, it has since become a perennial: retired, revived, and rediscovered by each new generation. But for anyone who grew up in the '90s, the lava lamp is pure bedroom-shelf nostalgia — a hypnotic, faintly rebellious glow to stare at instead of doing homework.
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