John,

Here is a link to the picture you are referring to:

http://www.the12volt.com/ohm/ohmslaw.asp

The one thing that always (to me, anyway) showed that scientists DO have a
sense of humor:  The unit of measuring resistance to current flow is the
ohm.  The unit of measuring the conductance of current flow is the mho (ohm
backwards).  Somebody was having fun...

Just remember, ohm's law is as easy as PIE - P=I x E (Power [in watts] =
Current [in amps] times Volts).  That and I=E/R (Current [in amps] = Volts
divided by Resistance [in ohms])are the only ones you need to remember, with
any two values you can solve for the third, in simple DC circuits anyway.

And for "Party Lights", I would probably just make a string of LEDs in
different colors - festive, and low current draw.  Not to expensive if you
make them yourself...

Don in Reidsville, NC
1986 Kawasaki Concours
1988 Vanagon GL (Sylvia)
"I reject your reality and substitute my own." - Adam Savage

----- Original Message -----
From: "John Rodgers" <inua@CHARTER.NET>
To: <vanagon@GERRY.VANAGON.COM>
Sent: Wed 06 April 2005 05:51
Subject: Re: DC party lights

> Somewhere out there - a book, on the 'Net, somplace --- is a drawing - a
> circle I think - that is a representation of the relation of all the
> aspects of electricity.-- Volts, amps, Watts, Resistance, etc........the
> old E=IR thing. I haven't found it but I know it exists. You can plug in
> the numbers for just about anything and calculate for the unknown value
> -- whether volts, amp, resistance, watts, whatever. There is also some
> stuff about wire sizing for load.
>
> Just thought I would bring it up!
>
> Regards,
>
> John Rodgers
> 88 GL Driver
> Chelsea, AL