Breathing: Hot and Cold Air
By PinchMe
@PinchMe (193)
Canada
January 30, 2007 8:29am CST
How is it possble we can blow two different types of air?
Hot air when we want to warm up our hands. Cold air when we want to cool down our foods.
Can anyone explain this?
2 responses
@deathsdragon (29)
• United States
30 Jan 07
it has most to do about pressure. when your warming up your hands your mouth is open more and the air moves slower, when your blowing on food your lips are closer and the air moves faster it feels cooler because its moving heat away from the area at a faster rate
1 person likes this
@HighPriestess (739)
• Melbourne, Florida
30 Jan 07
It's the speed at which the air is leaving the mouth. Your body is a constant 98.6. The air in your lungs will be this warm. If you let the air come out of your mouth slowly, it will remain warm. If you blow it out at a higher speed, the air cools down.
