Sometimes I get asked to do some demos for kids.  I like this, it is fun.  This week, I was asked to do just such a demo.  Kind of as a historical record, I am going to document what I did.
The audience
It is always important to think about who you are talking to.  Is this a group of high school physics students? High school teachers? Middle school teachers? Kids?  It could be anything.  In this case, I was meeting with a group of kids from ages 8 to 12 as part of a science camp.
The Objective
Is there a reason for the demo show?  In this case, there was no stated objective.  That means I can…
