From: Jeffrey Wiggins [SMTP:jwiggins-at-kcc-dot-com]
Sent: Monday, February 09, 1998 12:47 PM
To: 'Tesla List'
Subject: RE: Output Voltages
Robert, Richard, All,
(I knew Robert would reply to this one.)
I vividly remember that day at CFRB - I plan several picnics there during thunderstorm season this summer!
Something I also noticed: simultaneous with some of the "nearer" lightning strikes (I would estimate ~2 miles), a very hot discharge between a section of guy wire and the aligned section of the guy wire under it. Estimated distance here - 20 to 30 feet.
I don't know the mechanism here - maybe, because the guys rise at an angle, the local field gradient is "squeezed" together?
We really ought to try and catch this phenomenon on film or tape this summer.
From: Tesla List[SMTP:tesla-at-pupman-dot-com]
Sent: Saturday, February 07, 1998 11:28 AM
To: 'Tesla List'
Subject: Output Voltages
From: Robert W. Stephens [SMTP:rwstephens-at-headwaters-dot-com]
Sent: Friday, February 06, 1998 8:15 PM
To: Tesla List
Subject: Re: Output Voltages
Richard Hull wrote:
> I have used special antennaed electrometers to monitor storm and air
> electrical gradients. I can definitely state that a distant lightning
> stroke sucks juice from the local environment to feed the huge distant
> gradients. The local gradient in a receeding or approaching storm will rise
> slowly and then leap to a quick peak (charging of the local air) This peak
> can be as high as several thousand volts/meter! At the instant of the stroke
> two miles away, the local gradient will instantly drop to a perfect zero! A
> stroke feeds on a lot of surrounding charged air.
> Richard Hull, TCBOR
I was at the CFRB transmitter site near the northern shore of Lake
Ontario last year while a violent lightning storm passed overhead.
Jeff Wiggins, also on this list was with me. The antenna farm
consisted of about 6 live towers up on base insulators, each with many guy
wires. Each guy wire was broken up (for RF purposes as top not
resonate) with inline porcelain insulators. These individual
sections of guy wires were therefore insulated and at their varying
heights, could equalize themselves to the average field gradient
existing at their particular altitudes above ground.
As we stood under cover rather near to the north end of the antenna
farm we could hear the sounds of individual guy line insulators
flashing over at random as the field intensity in the area increased.
Then, at the same moment as we visually saw a lightning stroke occur
and I'm gonna guess even 5 miles away or more, SNAP!, every goddamn
guy wire insulator in the entire antenna farm broke over in a very
precise and instantaneous corus! This was observed for both
cloud-to-cloud, as well as cloud-to-ground strokes, both near and
still visually evident but far!
This was the first time I had ever been witness to the atmospheric
effects of static electricity on this scale before and was amazed at
the same time as I was able to correlate it to the distributed
instantaneous E- field effects which large disruptive discharge Tesla coils (and
yes even small ones) have on their local environment. I was left
with a powerful, impressive and lasting impression of that event.
While there I also *heard* the sound of a leader shooting away and
upwards from one of the towers (at least this is what I think it
was). It had the outranging type echo and crackle you get from a typical stroke,
but much quieter in volume. I saw no visible effect, and only put
this explanation together after hearing only the sound.
Jeff, you want to reinforce or otherwise comment on this interesting
experience? : )
Ahhhh, sharing fond memories in Ontario,
Robert W. Stephens
Lindsay Scientific Co.
RR1 Shelburne, ON Canada L0N-1S5
Tel: 1-519-925-1771 Fax:
*Custom built Tesla coils, etc., for museum display
and special effects work.
*Canada's largest publicly accessible wall-to-wall
indoor lightning show...by appointment.
*Future home of Electric Science World,
educational/entertaining Theatre of Electricity.
*Antique TV Museum...now in search-and-acquire mode.
~~~~~~~~~~~~~ Inquiries welcomed! ~~~~~~~~~~~~~~~