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Re: Strange Spark Phenomena (fwd)
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To: tesla@pupman.com
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Subject: Re: Strange Spark Phenomena (fwd)
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From: Tesla List <mod1@pupman.com>
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Date: Thu, 12 Feb 1998 22:16:56 -0700 (MST)
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Approved: mod1@pupman.com
---------- Forwarded message ----------
Date: Thu, 12 Feb 1998 05:24:41 -0700
From: Scott Stephens <stephens@enteract.com>
To: Tesla List <tesla@pupman.com>
Subject: Re: Strange Spark Phenomena
At 01:30 AM 2/11/98 -0600, you wrote:
>Edward V. Phillips wrote:
>
>> I usually see the following. More or less straight bright
>> blue spark for a couple of inches, at which point in branches into
>> a number of purple sparks which fan out around the point where
>> the blue spark ends.
Another explanation for a bushy, diffuse spark generated by a long-pulse
train tube coil, in contrast to a sharp, distinct arc from an impulse
capacitor discharge coil, is a stroboscopic effect.
A bright single-shot discharge will appear distinct as a lightning bolt. A
persistant gaseous discharge will have time to flow and diffuse and appear
less sharp and well defined.