>-----Original Message-----
>From: Ted Rook [mailto:[email protected]]
>Sent: Friday, September 13, 2002 8:05 AM
>To: <
>Subject: electricity and water
>
>
>
>my 2c 
>
>The audience are children.
>
>Children do not even know what electricity is.
>
>This would seem to require education in more than one topic if 
>it is to be understood by the children
>
>For example
>
>first: what is electricity? the difference between the wall 
>outlet, the car battery and the overhead power lines.
>
>second: how does electricity travel from place to place? the 
>concepts of conductors and insulators.
>
>third: why is electricity dangerous? electric shock, what is 
>it? is the body a conductor or an insulator? are some parts of 
>it are most sensitive to damage?
>
>fourth: why wet places and things are hazardous: water can 
>change things from insulators to conductors eg wood, paper, 
>cloth, skin.
>
>Good Luck
>
>Ted Rook
>


Ted:

All good points. You want to aim your pitch to 80% of the target audience.
So, to provide some atypical guideposts, I got a skip loader and excavated
some recollections of my early projects. When I was 4, my parents found that
I was able to defeat child-proof power outlets. At 7, I knew batteries and
motors worked better with copper wires than cotton strings. I was soldering
at age 10. At 11, I was doing electroplating. At 12, I was building kits
with tubes. And at 13, I learned about power dissipated in a load by
measuring the DC resistance of a big flashbulb. YMMV!

regards,

Ed
 


Ed Price
[email protected]
Electromagnetic Compatibility Lab
Cubic Defense Systems
San Diego, CA  USA
858-505-2780  (Voice)
858-505-1583  (Fax)
Military & Avionics EMC Is Our Specialty
Shake-Bake-Shock - Metrology - Reliability Analysis

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