Solid breath? i know how to do it but how does it really work?

Question

i can do the solid breath where you close your mouth and click then put presher ect with no gimmicks. but i do noy now how it workes and i really want to know cause my friends think i am cheating and they want an exsplanation on how it works thanks.

Answer 1

I'm just guessing, but it looks like it is a variation on something called a venturi nozzle, where you are creating a low-pressure area in your mouth by blowing just right.  As your warm-moist breath goes through the low pressure, it cools and the water vapor condenses, forming a little cloud that looks like a puff of smoke.  

You can see the same thing happening sometimes over the wings of aircraft that are taking off.  The air moving over the wing is moving faster, so its pressure is low, and the water vapor in the air condenses.  On take-off, mainly, if conditions are right when you look out over the wing you will see a white cloud form over the wing.  

But like I say, that's just a guess as to the solid breath trick.