There is an ordinary incandescent bulb or reflective bulb at the bottom, and a glass bottle is placed on top. A special aqueous solution and waxy solid are placed in the bottle. When the bulb lights up, heat is formed, which is transferred from the bottom to the glass bottle, and the wax at the bottom of the bottle is heated. After melting and gradually becoming lighter, it will slowly rise, and when it gets slightly colder at the top, it will slowly fall again, thus creating the floating effect.
It is based on very basic scientific principles and contains only a few simple components. The necessary components of a lava lamp: a compound that creates a floating "bubble", a compound for the bubble to float in, and a light bulb to provide the lighting effect and provide the heat needed to move the bubble.
To create floating bubbles, the two compounds in the lava lamp must be immiscible, that is, insoluble in each other. This means that liquid A cannot dissolve in liquid B, and the two cannot mix, so what you see are two separate liquids, one floating on top of or in the other.
The lava lamp is inspired by the design of the egg hour hand, because it uses the principle of thermal energy to create an eternal light and shadow movement and changing effect; it has a very cool appearance, low-tech but is extremely psychedelic, and now it has become a popular holy object .
Today's lava lamps have developed into many colors, shapes and sizes, becoming an eternal fashion. They are the first choice for gifts, home decoration and display, and are a must-have decoration for college dormitories and offices. , and because of its slowly changing and endless effects, it will make people have a daydream state.
History
In 1963, British entrepreneur Edward Craven Walker came up with the idea of ??a lava lamp after watching a homemade egg cooker. , this egg poacher is made from a cocktail shaker filled with liquid that bubbles over the bar's stove. He hired British inventor David George Smith to develop the device and the chemical formula it required.
Smith is credited as the inventor of the original U.S. Patent 3,387,396 for "Display Apparatus" filed in 1965 and assigned to the Craven-Walker Company, and subsequently issued in 1968. ?
Craven Walker's company, Crestworth, is located in Poole, Dorset, UK. He named the lamp "Astro" and there are variations such as "Astro Mini" and "Astro".
In 1965, Adolph Wertheimer and Hy Spector became interested in Walker's products when they saw them at a German trade show. They purchased the U.S. rights and formed the Lava Manufacturing Corporation in Chicago to sell what they called the Lava Lite Lamp.
In the late 1970s, the U.S. rights were sold to Larry Haggerty, who created a subsidiary of his company Haggerty Enterprises called Lava World International, which produced U.S. lava lamps for 30 years Years of history.
In 2003, American lava lamp manufacturer Lava World International (formerly Lava-Simplex-Scribe Internationale) moved production to China.
In 2008, it was acquired by Talon Merchant Capital and renamed Lava Lite LLC. As of 2016, lava lamps are sold in North America under the Lifespan brand. ?
In 2018, the "Lava Lamp" brand was acquired by Schylling Inc., a toy and gift manufacturer in North Andover, Massachusetts. who continues to hold the U.S. trademark rights to the shape and name of the LAVA lamp.
After selling the US rights, Craven Walker retained the rights for the rest of the world, taking on two business partners, Cressida Granger and David Mulley, in the late 1980s.
They eventually took over the company and changed its name to Mathmos in 1992. Edward Craven Walker served as their advisor until his death in 2000.
Mathmos continues to produce lava lamps and related products. They won two Queens Export Awards and a Design Week Award for Best Multimedia. ?
The Astro Lava Lamp was introduced in 1963 and celebrated its 50th anniversary in 2013. ?Mathmos lava lamps are still manufactured at the original factory in Poole, Dorset.
Reference for the above content: Baidu Encyclopedia-Lava Lamp