Tom Dixon is a British designer known for his innovative furniture and lighting designs. One of his most popular creations is the Lava Lamp, which has captivated people with its mesmerizing glow for decades. In this article, we will explore the history and design of Tom Dixon’s Lava Lamp, as well as the science behind its hypnotic effect.
History of the Lava Lamp
The Lava Lamp was invented by Edward Craven Walker in 1963. Walker was a British accountant who stumbled upon the concept when he noticed a homemade egg timer made of a cocktail shaker filled with oil and water. He developed the idea and patented it as the Astro Lamp. The lamp became wildly popular in the 60s and 70s, and the design has since been copied by many other manufacturers.
Tom Dixon acquired the rights to the Lava Lamp in 1995 and began producing it under his own brand. Dixon’s version of the lamp features a sleeker design with more vibrant color combinations.
Design of the Lava Lamp
Tom Dixon’s Lava Lamp features a blown-glass globe filled with a viscous liquid and heated by an incandescent bulb at the base. As the liquid heats up, it expands and rises to the top of the globe, where it cools and sinks back down. The cycle of rising and falling creates the mesmerizing, undulating effect that makes the Lava Lamp so captivating.
Dixon’s version of the lamp also features a range of color combinations, including black and copper, gold and white, and blue and brass. The lamps come in a range of sizes, from small table lamps to large floor lamps that stand over six feet tall.
The Science Behind the Lava Lamp Effect
The hypnotic effect of the Lava Lamp is the result of two physical processes: convection and thermal diffusion. Convection is the movement of fluid caused by differences in temperature. In the Lava Lamp, the heating of the bulb causes the wax to heat up and rise to the top of the globe. As it cools, it sinks back down to the bottom to begin the cycle again.
Thermal diffusion is the second process that contributes to the effect of the Lava Lamp. This is the movement of fluid caused by differences in concentration. In the Lava Lamp, the wax is less dense than the liquid, which causes it to rise to the top of the globe. As the wax cools and becomes more dense, it sinks back to the bottom.
The combination of convection and thermal diffusion creates the undulating patterns that make the Lava Lamp so mesmerizing to watch.
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