The Science of Cold

The Science of Cold CoolAntarctica.com Humans are essentially tropical animals and are not equipped to deal with even mild cold. That we can live in cold climates is a result of behavioural adaptations such as wearing appropriate clothing and building shelters. Successfully surviving cold requires two simultaneous events. Firstly, generating sufficient body heat by burning appropriate food and secondly, preventing the loss of that heat by suitable clothing and shelter. The lowest temperature that can be endured is a combination of the duration and the extent of the exposure, so it is not easily determined. A naked person will start to feel cold if the surrounding temperature drops below around 25°C (77°F). Physiological responses such as shivering and diverting blood away from the extremities and surface of the skin will then kick in. These physiological responses mean that a reasonably well nourished adult can maintain their core temperature in still air just above freezing point wearing only light clothing. Moving Air Wind is very effective at removing heat....
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