Freezing in Outer Space
Classical Mechanics
Level
3
Suppose you were teleported into outer space, causing your body to freeze over time. What mechanism would be principally responsible for this?
The Casimir Effect
Vacuum Cooling
Hawking Radiation
Conduction
Convection
Radiation
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The correct answer is Radiations .
In the outer space, there are no surroundings. Hence, the body can not lose heat through conduction and convection. The body will continuously emit radiations to the surrounding but will not receive any in return because there is nothing in the vicinity. Thus, the flow of the energy due to radiations will be unidirectional and continue till it loses all its energy.
The Casimir effect talks about the small attractive force that acts between two close parallel uncharged conducting plates.
Vacuum cooling is based on evaporation of excess water in the objects due to lower surrounding pressure. However, this will last till the body has the liquid to evaporate.
Hawking Radiations is the black body radiations that are predicted to be released by black holes, due to quantum effects near the event horizon.