Blowing on dal is not cold air

What the video says

1. Blowing on hot dal is not cold air.
2. Your breath is about 35°C. Warmer than the room.
3. Hot dal cools by losing water into the air.
4. Blowing sweeps away the damp air, so more water can leave.
5. Try it: blow on hot dal, then on a dry roti.
6. The dal cools faster. That is evaporation.

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