Excellent dissertation .
it then occurred to me :
if the air cools down , after passing thought pursed lips
and expanding
where does the thermal energy in there air go ?
as a rule : thermodynamics suggests there is no free lunch.
if it's cooler in one spot , then it's hotter in another ?
does one's mouth heat up ? The Compression step of the equation
Does one's saliva eventually boil ?
if done repeatedly ? inquiring minds ( sic ) might want to know
or not .
or does one just pass out , due to the lowering of one's
pCO2 before this can happen ?
not a thermal experiment Id suggests for everyone .
