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Insulation properties, scientific theory heat can be transferred in three ways, either through conduction, convection or radiation.
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Insulation Properties Scientific Theory Heat can be transferred in three ways, either through conduction, convection or radiation. Convection is when warm water or gas rises and as a result is expanded. As it is expanded it is less dense than the cold water or gas. The cooler water or gas is therefore denser now and so falls to the bottom and is heated; the same process is reciprocated as described above. Objects are always taking in and giving out radiation. The amount of radiation given out depends on the temperature and the surface area. A dull black surface loses energy more quickly and is therefore said to be a good radiator. In comparison to this a bright shiny surface is a poor radiator. A dull black surface is a good absorber of radiation, which means it takes in and gives out radiation quite easily. The exact opposite to this is a poor absorber of radiation...
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