What is the science behind the 'fireballs that you can hold in your hands' trick? Is it a hoax?

Question

http://youtube.com/watch?v=uzkNI4YIU2o

So basically I can't see how rolling around a flaming lighter-oiled cotton ball in your hands without getting burnt is possible. Could anyone explain this? Or better yet, has anyone tried it?

Supposedly the top part of the flame is the only part thats hot and the bottom won't hurt you.

Is this real or just a hoax?

Answer 1

good find, i wanna kno too. lets c wat other ppl have 2 say

Answer 2

I have tried it and yes you can actually do the trick but it takes time in training your body and hands to get used to the heat. Scientificaly, the blue flames dont burn as hot as the red , orange or yellow flames. never try to put  your fingers on top of the flame because heat rises and therefore burns. when I first tried it i burns my hand because i tried to leave it on one spot. you have to continuously move the ball. once you are used to the heat you can leave the ball in one spot longer that you had before.