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Lava lamp heat transfer.
As the substance gets heated the molecules move apart and the substance becomes less dense than the liquid in the lamp.
This sciencestruck post discusses the methods of heat transfer and its applications in detail.
Lava lamps are very interesting to look at.
But they are also interesting examples of buoyancy heat transfer and solubility.
Product title lava the original 14 5 lava lamp available in multiple colors average rating.
This transfer takes place in three ways conduction convection and radiation.
Conduction is the transfer of heat through direct contact in this case metal coil contact with the lava at the bottom of the lava lamp.
Transfer of heat through convection takes place in a lava lamp when the light bulb at the bottom of the lamp heats up the colored substance at the bottom of the lamp.
A lava lamp is a decorative lamp invented in 1963 by british entrepreneur edward craven walker the founder of the lighting company mathmos the lamp consists of a bolus of a special coloured wax mixture inside a glass vessel the remainder of which contains clear or translucent liquid.
As the name suggests heat transfer is the travel of heat or thermal energy from one object or entity to another.
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Convection is the transfer of heat through movement such those in a flowing medium such as liquids or gases or in this case as the lava rises in a lava lamp.
The vessel is then placed on a box containing an incandescent light bulb whose heat causes temporary.
That s why the substance rises to the top of the lava lamp.
The original lava lamp company is an iconic brand that has been around for over 50 years.