Because the air that you breathe out has already been warmed while it was inside your body and it passes that warmth on to your hands.
Actually, there isn't any heat transfer when a fan is blowing. But, if you really need the answer, the closest one would be radiation.
Metals have high heat conductivity compared to wood. When your hands touch a piece of wood the surface layer of the wood heats up to your skin temperature quickly and does not transfer this heat very quickly to the bulk of the wood. Therefore your skin ends up transferring very little heat and does not cool down very much. When you pick up a piece of metal heat begins transferring from your hands to the surface of the metal and is easily carried away into the bulk of the metal. The surface layer of the metal therefore doesn't heat up very quickly (it's passing most of the heat your hands give it into the bulk) and your skin therefore loses a lot of heat and cools down a lot. It some cases the outside of your skin can quickly drop below freezing. If your hands have any moisture on them then this moisture might freeze, "sticking" you to the piece of metal.
That means that heat energy is transferred from the hot cup, to the hands.
Because when you rub your hands together, it causes the molecules on your hand to move in random motion, which is thermal energy.
Yes, rubbing your hands together makes friction. This friction makes heat.
To stop it from blowing up.
Car heaters need a few moments to warm up.
i can heat up stuff with my hands
heat and a/c barley blowing in back?
Car not blowing air or heat
because the flesh on your hands then heat up the air
What do you mean by "has no heat"? No air blowing out, blowing out cold air when heater is on, blowing nothing at all? Heater not turning on? What specifically is happening?
dynamite is used for blowing things unwanted up. if its put in the wrong hands it can be very dangerous.
dynamite is used for blowing things unwanted up. if its put in the wrong hands it can be very dangerous.
friction
Ask this question again. Is the question no blowing or blowing cold?
Yes, the food that is hot trades its heat inside with the cooler air around it blowing on it makes this process speed up.