[pct-l] Lightening Rods....

[Campy]

It's the skin effect with lightning which matters 'cause of its strong  
AC components. The direct current resistance of various materials  
doesn't factor in as strongly at 10 khz to 1 MHz. A copper rod or a  
tree presents roughly the same attraction in the case of a leader  
stroke.
==^=== Campy

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Time spent doing trail work shall not be deducted from your life!
===^==

On Dec 31, 2007, at 2:46 PM, Daniel Bailey wrote:

> I stand corrected!  This makes sense given that the majority of high  
> end cookware has a copper base.  At the same time, there have been a  
> few times where I've used a titanium mug and found the surface too  
> hot to drink from only to set the mug down and find that my drink is  
> cold a few minutes later.
>
> With the higher resistance of titanium, applying Ohms law (voltage =  
> current * resistance) leads me to expect that the current across a  
> titanium rod would be higher than an aluminum rod.  And it's  
> electric current that kills, not the voltage as some would believe.
>
> Of course, given the high voltage in a typical bolt of lightening,  
> the current through either an aluminum or titanium rod would be more  
> than I'd voluntarily withstand.
>
> Be well,
>
> Senator

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