How to make Lava Lamp | Physics experiments
Автор: purple cetus
Загружено: 2022-07-19
Просмотров: 108
In the lava lamp we have two liquids which are Very close in density and Insoluble in one another. in this video I used vegetable oil and vinegar.
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A lava lamp consists of a bolus of a special colored wax mixture inside a glass vessel, the remainder of which contains clear or translucent liquid. The vessel is placed on a base containing an incandescent light bulb whose heat causes temporary reductions in the wax's density and the liquid's surface tension. As the warmed wax rises through the liquid, it cools, loses its buoyancy, and falls back to the bottom of the vessel in a cycle that is visually suggestive of pahoehoe lava, hence the name.
British entrepreneur Edward Craven Walker had the idea for the lava lamp in 1963 after watching a homemade egg timer, made from a cocktail shaker filled with liquids, as it bubbled on a stovetop in a pub.
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