RE: Tesla myths corrected - Best text? (fwd)

["Tesla list" <tesla@xxxxxxxxxx>]

---------- Forwarded message ----------
Date: Mon, 15 Oct 2007 12:38:04 -0400
From: Scott Bogard <teslas-intern@xxxxxxxxxxx>
To: Tesla list <tesla@xxxxxxxxxx>
Subject: RE: Tesla myths corrected - Best text? (fwd)


Hi Peter,
     Funny you should mention this, just yesterday I got a book about
Tesla's life for my birthday.  It is called "Tesla, Master of Lightening"
by Margaret Cheney and Robert Uth.  Barnes and Noble publishing.  I
haven't read the whole thing yet, but so far it seems very well cited.  
Tesla did indeed "invent" a "death ray" now called a charged particle beam
weapon, but no hard evidence suggests one was ever built, only that the
Soviets expressed interest in the idea.  So far nothing about Tunguska, or
100MV, but I'm only on the third chapter.  Given what I have read so far,
I would recommend it, but, like I said, I haven't finished it.

Scott Bogard.

> Date: Mon, 15 Oct 2007 09:45:56 -0600
> From: tesla@xxxxxxxxxx
> To: tesla@xxxxxxxxxx
> Subject: Re: Tesla myths corrected - Best text? (fwd)
> 
> 
> ---------- Forwarded message ----------
> Date: Mon, 15 Oct 2007 22:59:19 +0800
> From: Peter Terren <pterren@xxxxxxxxxxxx>
> To: Tesla list <tesla@xxxxxxxxxx>
> Subject: Re: Tesla myths corrected - Best text?
> 
> I have had the need on several occasions now to correct myths about Tesla 
> but lack the knowledge base. Does anyone recommend a book that will have 
> this sort of information.
> 
> Things like
> "Lit up 200 light globes at 40 miles."
> Hard to conceive doing this even with a wire.  Think about it in terms of 
> wire resistance for DC particularly if only conventional mains voltages.
> Suppose light globes are 100V 50W  then 200 x 50W = 1kW. At 100V this is 
> 10A. Even 10 ohms will be a major problem and would require very thick wire 
> to get 0.25 ohms per mile. 2 Two strands of 0 SWG = 9mm thick would do this. 
> And this is just one way.  It assumes a very good earth is available at both 
> ends.  Use one strand of 9mm and you will light up the globes at 1/4 current 
> and perhaps 1/10 brightness.
> At current copper prices that is something like $14,000. Not counting 
> supports etc.
> Using low frequency AC allows voltage step up then the supports become 
> important and you need to run transformers at either end.  And using high 
> frequency or even Tesla output is out of the question due to corona, 
> capacitative and inductance issues.
> To do that as a wireless setup even with a mile high transmitter and 
> receiver and resonant setup would seem far fetched to get that sort of 
> performance
> 
> I understand that this was press hyperbole that has grown by word of mouth. 
> I recall someone stating that the original experiment was that he lit up 
> some globes just outside the lab earthed to a pipe.  I don't have the 
> background for that.
> 
> Similarly, Tunguska explosions, death rays, resonant vibrations and 100MV 
> sparks are all ludicrous.
> 
> Can anyone help direct me?
> 
> Peter 
> 
> 
> 

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