Re: MIT wireless energy transfer etc. (fwd)

["Tesla list" <tesla@xxxxxxxxxx>]

---------- Forwarded message ----------
Date: Mon, 30 Jul 2007 22:09:16 EDT
From: Mddeming@xxxxxxx
To: tesla@xxxxxxxxxx
Subject: Re: MIT wireless energy transfer etc. (fwd)

 
In a message dated 7/30/07 11:24:20 A.M. Eastern Daylight Time,  
tesla@xxxxxxxxxx writes:


---------- Forwarded message ----------
Date: Mon, 30 Jul 2007  10:11:52 -0500
From: David Thomson <dwt@xxxxxxxxxxxx>
To: 'Tesla  list' <tesla@xxxxxxxxxx>
Subject: RE: MIT wireless energy transfer  etc. (fwd)

Hi Gary,

> . . it is found that with the above  circuits and under such
conditions about 
> 1 mile communications  should be possible.  With circuits 1000 meters
square, 
> about  30 miles.  From this, the inferiority of the induction method
would  
> appear to be immense as compared with disturbed charge of ground  and
air 
> method." [NIKOLA TESLA  COLORADO SPRINGS NOTES   1899-1900, p. 29.]

Thanks for finding this jewel of a quote.  That  pretty much provides
the solid evidence that Tesla was using longitudinal  waves within a
charged environment for his wireless power transmission  system.  Good
work.

>From this we can see the importance of  the third coil acting as a
capacitor.  The capacitance is needed to  transfer energy from the
inductive/capacitance resonance of the  primary/secondary coils to a
pure E field resonance in the third  coil.  The E field resonance
"disturbs the charge of ground and  air."

Dave



Sorry Guys,
 
If you look at the entire entry for that date in CSN, you will see that  this 
day's notes and the previous 4 days were plans and speculations, NOT  
accomplished facts. (Emphasis is mine)
 
"June 5, 1899
 
Induction Method: results with apparatus TO BE USED calculated  from
 
M = p^2 s^4 Wp Vt^2 / 32^2 D^6 S^2 (This formula is VERY  problematical) 
 
M = power in secondary or receiving unit
p = 2 pi n, estimated 40 000 = 4 x 10^4
s = length of side of square circuit = 1200 = 12 x 10^2 cm
Wp = power spent in primary = 4 x 10^10 ergs assumed
Vt = total volume of wire in both circuits = 25 x 10^3 cu.cm.
D = distance from center to center of circuits (horizontal)
S = specific resistance of wires =1.7 x 10^3
 
Taking M to be the minimum 0.3 ergs to affect relay, it is found that with  
the above circuits and under such conditions about 1 mile communications SHOULD 
 BE possible. With circuits 1000 meters square, about 30 miles. From this, 
the  inferiority of the induction method would appear immense as compared with  
disturbed charge of ground and air method."
 
That pretty much provides ZERO evidence that Tesla was using  longitudinal 
waves within a charged environment for his wireless power  transmission system. 
 
It DOES show that his expected efficiency from induction method over  his 
mile distance was 0.3 / (4x10^10)=0.000000075%
 
It seems that in the brief "jewel of a quote" cited, once again, selective  
editing was used to mislead the faithful.
 
 
Matt D.
 
"Six people quoting the same unconfirmed source is not corroboration"
 



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