Single mother in need of explanation

[Dumb_Blonde]

Thank you in advance for your time. I found a neat project to do with
my 14 year old son, but would like to know the science behind it so it
will be educational.

Here is the video link.

It is a fire cracker experiment, and I know he will love it, but I am
clueless as to how this makes my car run

 

[JeffM]

Thank you in advance for your time.

Invest some of your own time and learn how to post to Usenet.
(This is NOT Google Groups.)

Pick ONE group and post your question there.

If you are a particularly selfish person (it is obvious that you ARE),
http://groups.google.com/groups/sea...LoUH6Iic0zpFLOPANdqfI6prRsqjc7uCt1A&scoring=d
when you post to multiple Usenet groups with the SAME question,
use the second-least obnoxious way to post:
http://66.102.9.104/search?q=cache:...y.answered+corrected+with.commas+individually