Qi Elves Radio 2

[bednobs]

this week, while i was getting ready for school one of the questions for the QI elves was "why when you blow on something it's cool, but when you "huff" on something it's warm. I didnt have a chance to listen to the answer - id anyone else, or anyone know?

[Buenchico]

I don't usually listen to Radio 2 at that time of day but I happened to catch that programme. The answer given was that it's all to do with the speed of the air.

Rather than me trying to remember the exact wording of the answer though, I'll simply refer you to this website for the same information:
https://www.sciencefocus.com/science/why-does-blowing-hard-on-our-hands-cool-them-but-just-breathing-on-them-warm-them/