Everyone who has ever eaten in a curry house must have noticed that the hot hand-wipe things you get at the end of a meal go from being untouchably hot to freezing cold within two seconds. This allows you a tiny window of time in which to clean your face and hands while the thing is at a comfortable temperature.
Can anyone explain to me why this is? How can they go to below room temperature (they definitely do go below room temperature) from hotter than the sun so quickly? I understand thermodynamics enough to know how a fridge works, so if anyone can explain this in layman's terms, that'd be great..