How do blankets keep you warm?
In: Physics
Blankets are insulation. Your body produces heat and that heat escapes through your skin. If you want to keep warm, you trap that heat in by wearing thick clothing or by wrapping blankets around yourself. This keeps your waste body heat close to keep you warm. If you want to cool off, you wear lighter clothing or you use fans to blow away the waste heat, so cooler air surrounds you rather than baking in a bath of your own heat. For this reason, when the temperatures around you exceed your own body heat, fans stop cooling you off. You would be warming yourself up by using fans, as the fans start acting like heaters by blowing hot air onto you.
Latest Answers