<VV> bi-metallic coil

[J R Read]

Thanks,

It's good to know that I'm still smarter than my son.

Well, some of the time, anyway.

Later, JR


----- Original Message ----- 
From: <Mikeamauro at aol.com>

> Hey Jr... The "bi-metal" of which your son speaks is a thermocouple. A
> thermocouple is typically composed of two different metal wires which are
> twisted together, and, when heated, produce a current. Thermocouples are
> generally used as temperature sensors, as they produce very predictable 
> and
> accurate outputs. See more here: 
> http://en.wikipedia.org/wiki/Thermocouple .  A
> bi-metal coil, on the  other hand, is a mechanical device. Dissimilar 
> metals
> are fused in a strip, and  the strip is then coiled. The coil, when 
> heated,
> unwinds, creating a  movement for linkages, mercury bulbs, or other driven
> devices. See more  here: _http://en.wikipedia.org/wiki/Bimetallic_strip_
> (http://en.wikipedia.org/wiki/Bimetallic_strip)   .
>
> And that's all I have to say about that.
>
> Cheers!
>
> Mike Mauro
>
>