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Re: [TCML] Color photos of Phantom Streams and DC phenomena



Udo,

These brighter regions appear to be "space stems" and "space leaders" - short sections of leaders that form ahead of a propagating negative leader. Brush-like streamers connect the space stem to the advancing leader, while the opposite end is fed by another set of brush-like streamers. Space stems and space leaders grow towards each other an merge, lengthening the main leader.

Space stems and space leaders only appear in propagating negative leaders. They are observed in laboratory discharges, negative lightning, and apparently in Jeff's spiral coil discharges and occasionally other TC discharges.

A previous discussion of these discharges can be found in the Pupman archives:
http://www.pupman.com/listarchives/2009/Mar/msg00038.html

Following are some URL's with background info (that are not behind academic publisher paywalls):

http://www.irsweb.it/en/PDF/Theoretical%20modelling%20of%20the%20laboratory%20negative%20stepped%20leader.pdf

http://www.lightning.ece.ufl.edu/PDF/Biagi%20et%20al%20%5B2010%5Da.pdf

http://www.capturedlightning.com/Papers/Longgap1.pdf

Bert

Udo Lenz wrote:
Beautiful shots!
On some of the photos the streamers seem to have bright sections
along them. Do you have any explanation for that?

The reason, that I ask is because the currents, which would cause
a bright section, should have some distributed endpoints in order
to have some capacitance.

Udo

----- Original Message ----- From: "Jeff Behary" <jeff_behary@xxxxxxxxxxx>
To: <tesla@xxxxxxxxxx>; "Kelly McJilton" <Klmcjilton@xxxxxxxxxxx>
Sent: Tuesday, September 08, 2015 4:35 PM
Subject: [TCML] Color photos of Phantom Streams and DC phenomena


For the first time color photos have been taken of Tesla's phantom
streams and Kinraide's various experiments. Hats off to Kelly McJilton
who manages to do what I tried unsuccessfully for 10 years. Really
great stuff. All photos are of corona from a 9" pancake coil operating
from a 3500V 8mA neon sign transformer. Clear positive and negative
phenomenas can be seen from the distinctly different fractal patterns
(forked branches vs feathery plumes).
http://www.electrotherapymuseum.com/WhatsNew2015H.htm
Take a look, they are magnificent.Jeff

Sent via the Samsung GALAXY S® 5, an AT&T 4G LTE smartphone

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