"John Ammeter" wrote in message
...

What did you just say?? Kerosene is less volatile so is
more dangerous?? Tell you what... try this experiment for
me. Take a small dish of kerosene, about a cup, no more and
hold a lighted match above it. Vary the distance of the
match from 10" to 1/2" above the kerosene. Ok, did it
catch on fire??

Now, take another small dish with the same amount of auto
gasoline (oh, to add another variable, try it later with
Aviation Gas). Same dish, same match and Same distances
from the fuel. Did it catch on fire??


Ah. But now try it with a lighted cigarette.

http://intuitor.com/moviephysics/index.html and scroll down to the section
"Cigarettes."